Sept. 11, 2023
S26E109: Have they finally found Planet X?
SpaceTime Series 26 Episode 109 *Have they finally found planet X? Astronomers in Japan have found possible evidence of an Earth-like planet orbiting in the Kuiper Belt. *XRISM space telescope launches into orbit. A powerful new Xray telescope has...
SpaceTime Series 26 Episode 109 *Have they finally found planet X? Astronomers in Japan have found possible evidence of an Earth-like planet orbiting in the Kuiper Belt. *XRISM space telescope launches into orbit. A powerful new Xray telescope has just blasted into orbit. The X-ray Imaging and Spectroscopy Mission -- XRISM - was launched aboard an H-IIA rocket from the Tanegashima Space Center in southern Japan. *Discovery of a local Baryonic Acoustic Oscillation Astronomers have discovered an immense bubble 820 million light years from Earth that's believed to be a fossil-like remnant of the birth of the universe. *The Science Report Australia on course for increasingly hot and dry conditions. Black death made the human immune system what it is today. Study warns whales ingest up to 10 million pieces of microplastics every day. Skeptics guide to growing corruption in the World Health Organisation This week’s guests: NASA XRISM Mission Astrophysicist Francois Mernier NASA XRISM Mission Astrophysicist Takashi Okajima And our regular guests: Tim Mendham from Australian Skeptics Alex Zaharov-Reutt from www.techadvice.life Listen to SpaceTime on your favorite podcast app with our universal listen link: https://spacetimewithstuartgary.com/listen and access show links via https://linktr.ee/biteszHQ **Support SpaceTime with Stuart Gary: Be Part of Our Cosmic Journey!** SpaceTime is fueled by passion, not big corporations or grants. We're on a mission to become 100% listener-supported, allowing us to focus solely on bringing you riveting space stories without the interruption of ads. 🌌 **Here's where you shine:** Help us soar to our goal of 1,000 subscribers! Whether it's just $1 or more, every contribution propels us closer to a universe of ad-free content. **Elevate Your Experience:** By joining our cosmic family at the $5 tier, you'll unlock: - Over 350 commercial-free, triple episode editions. - Exclusive extended interviews. - Early access to new episodes every Monday. Dive in with a month's free trial on Supercast and discover the universe of rewards waiting for you! 🌠 🚀 [Join the Journey with SpaceTime](https://bitesznetwork.supercast.tech/) 🌟 [Learn More About Us](https://spacetimewithstuartgary.com) Together, let's explore the cosmos without limits!
This show is part of the Spreaker Prime Network, if you are interested in advertising on this podcast, contact us at https://www.spreaker.com/show/2458531/advertisement
This show is part of the Spreaker Prime Network, if you are interested in advertising on this podcast, contact us at https://www.spreaker.com/show/2458531/advertisement
The Astronomy, Space, Technology & Science News Podcast.
WEBVTT
1
00:00:00.560 --> 00:00:05.000
This is Spacetime Series twenty six,
Episode one hundred and nine, for broadcast
2
00:00:05.080 --> 00:00:10.199
on the eleventh of September twenty twenty
three. Coming up on Spacetime, Have
3
00:00:10.359 --> 00:00:17.839
they finally found Planet X? Japan's
Chrism space telescope launches into orbit and discovery
4
00:00:17.920 --> 00:00:24.079
of our own local baryonic acoustic oscillation. All that and more coming up on
5
00:00:24.239 --> 00:00:49.079
Spacetime Welcome to Spacetime with Stewart Garry. Astronomers in Japan have found possible evidence
6
00:00:49.200 --> 00:00:54.000
of an earthlike planet orbiting in the
Kaiper Belt. The findings are reported in
7
00:00:54.039 --> 00:00:58.399
the Astronomical Journal and on the pre
Press physics website archive dot org. Are
8
00:00:58.479 --> 00:01:03.799
based on the discovery event usual orbits
for several Carper Belt objects, and suggest
9
00:01:03.840 --> 00:01:08.239
a large Earth size planet orbiting around
five hundred astronomical units out from the Sun.
10
00:01:08.920 --> 00:01:12.840
An astronomical unit is the average distance
between the Sun and the Earth,
11
00:01:14.079 --> 00:01:18.640
roughly one hundred and fifty million kilometers
or eight point three light minutes. The
12
00:01:18.799 --> 00:01:23.040
Kiper Belt is a ring of comets, icy worlds, and frozen debris circling
13
00:01:23.040 --> 00:01:27.640
the Sun out beyond the orbit of
Neptune, which orbits some thirty astronomical units
14
00:01:27.680 --> 00:01:33.640
out from the Sun. The dwarf
planets Pluto and Sharon are probably the best
15
00:01:33.760 --> 00:01:38.200
known Carper Belt objects. The new
statis authors Patrick's to Fear like Kakwa from
16
00:01:38.280 --> 00:01:45.000
Kindai University and Takashi Eater from the
National Astronomical Observatory of Japan, describe the
17
00:01:45.079 --> 00:01:51.359
orbital properties of trans Neptunian objects,
which appear to be consistent with gravitational perturbations
18
00:01:51.439 --> 00:01:55.040
that would have been caused by a
planet not much bigger than the Earth orbiting
19
00:01:55.040 --> 00:02:00.920
Among them, They also found a
significant number of Carper built objects at inclination
20
00:02:00.120 --> 00:02:06.920
orbits. Intrigued by their findings,
follow up computer simulations designed to explain their
21
00:02:06.959 --> 00:02:12.919
observations showed that the most likely explanation
was a relatively large carbo built object,
22
00:02:13.120 --> 00:02:16.919
such as a planet. The simulations
also showed that such a planet, if
23
00:02:16.960 --> 00:02:21.000
it exists, would have a mass
of between one and a half and three
24
00:02:21.159 --> 00:02:24.960
times that of the Earth, an
inclination of approximately thirty degrees to the ecliptic
25
00:02:25.120 --> 00:02:30.080
that is the plane where the planets
roughly orbit the Sun, and an orbit
26
00:02:30.120 --> 00:02:34.560
that would take the planet between two
hundred and fifty and five hundred astronomical units
27
00:02:34.599 --> 00:02:38.599
out from the Sun. The new
findings are just the latest effort in an
28
00:02:38.639 --> 00:02:43.560
ongoing search for a so called planet
nine, sometimes referred to as planet X.
29
00:02:44.159 --> 00:02:47.280
But what makes this new effort so
interesting is that the suspected planets orbiting
30
00:02:47.400 --> 00:02:53.080
much closer and than what previous studies
have suggested. The first solid hints of
31
00:02:53.080 --> 00:02:57.520
a possible planet X or planet nine
came to light over a decade ago when
32
00:02:57.599 --> 00:03:01.879
astronomers were looking for objects which could
pose a threat to the New Horizon spacecraft,
33
00:03:01.919 --> 00:03:06.000
which at that time was on a
mission to study Pluto on the Kuiper
34
00:03:06.039 --> 00:03:12.319
Belt. As they undertook their surveys, astronomers noticed some unusual gravitational perturbations in
35
00:03:12.360 --> 00:03:15.719
the orbit of thirteen Kiper Belt objects, thought to have been caused by interactions
36
00:03:15.759 --> 00:03:22.360
with a yet to be discovered massive
planet sized body. Then, careful calculations
37
00:03:22.360 --> 00:03:25.879
of the orbit of a Kuiper Belt
object twenty twelve VP one thirteen by planet
38
00:03:25.960 --> 00:03:30.759
hunters in twenty fourteen led to the
detection of similarities in the orbits of several
39
00:03:30.840 --> 00:03:37.719
other distant Kuiper Belt objects, and
it resulted in the new hypothesis postulating the
40
00:03:37.719 --> 00:03:43.199
possible existence of an unknown planet X
or planet nine, now based on the
41
00:03:43.199 --> 00:03:46.599
earlier observations, the undiscovered world would
be up to four times the size of
42
00:03:46.599 --> 00:03:52.240
the Earth and around nine times Earth's
mass. Now that's a lot bigger what's
43
00:03:52.280 --> 00:03:54.919
being proposed now. Also, the
orbit was very different too. It was
44
00:03:54.960 --> 00:04:00.240
on a highly elongated orbit around the
Sun, estimated to last at least fifteen
45
00:04:00.400 --> 00:04:03.879
thousand earth years. If it exists, the mysterious planet X could be an
46
00:04:03.879 --> 00:04:09.199
interstellar rogue planet captured by the Sun's
gravitational pool, or it could be a
47
00:04:09.240 --> 00:04:13.319
planet that was stolen by the Sun's
gravity from a neighboring star system early in
48
00:04:13.319 --> 00:04:15.839
the history of the Solar System,
when the Sun was just leaving it still
49
00:04:15.839 --> 00:04:20.959
a nursery. Another option is that
there are several models of planets in migration
50
00:04:21.040 --> 00:04:26.240
within the Solar System, which suggests
that as Jupiter and Satin migrated out to
51
00:04:26.319 --> 00:04:31.199
their current orbital positions, their gravitational
perturbations caused Neptune and Uranus to also move
52
00:04:31.319 --> 00:04:36.680
outwards in the process, swapping their
orbital positions and flinging a third ice giant,
53
00:04:36.720 --> 00:04:41.040
which was part of the group,
out into the Kiper Belt or possibly
54
00:04:41.079 --> 00:04:46.000
even beyond into interstellar space as a
rogue planet. Oh And as for the
55
00:04:46.000 --> 00:04:49.519
indecision between planet X and Planet nine. Well, the first ideas of a
56
00:04:49.600 --> 00:04:54.800
planet X in the Kiper Belt came
at a time when Plutter was still considered
57
00:04:54.800 --> 00:04:59.759
a fully fledged planet before it was
demoted to dwarf planet status, and so
58
00:05:00.040 --> 00:05:04.720
Skyper Belt World would have been a
tenth planet a planet X. This is
59
00:05:04.720 --> 00:05:12.439
space time still to come. Japan's
CHRISM space telescope launches into orbit and discovery
60
00:05:12.560 --> 00:05:17.759
of our own local barryonic acoustic oscillation
all that them or still to come on
61
00:05:18.040 --> 00:05:40.560
spacetime. A powerful new Japanese X
ray telescope is just blasted into orbit.
62
00:05:41.240 --> 00:05:45.759
The X ray Imaging in Spectroscopy mission
CHRISM was launched aboard an H two a
63
00:05:46.040 --> 00:05:58.759
rocket from the Tankashima Space Center in
southern Japan's just a gossip. We have
64
00:05:58.879 --> 00:06:02.079
a liftoff of the H Dwey launch
peak or number of forty seven from jack
65
00:06:02.160 --> 00:06:08.000
Start and the Gustimos based center at
age forty two and level seconds am on
66
00:06:08.120 --> 00:06:13.240
September stables depounced unt of time.
The H Dewey is now flying about the
67
00:06:13.319 --> 00:06:17.839
amount of an ocean duley least led
by Jackson, the Japan Aerospace Exploration Agency
68
00:06:17.959 --> 00:06:21.800
and collaboration with NASA and the European
Space Agency, the two thousand, three
69
00:06:21.879 --> 00:06:27.439
hundred kilograms spacecraft was placed into a
five hundred and fifty kilometer high orbit.
70
00:06:28.079 --> 00:06:32.079
Jackson had been forced to scrub three
earlier launch attempts hit bad weather. The
71
00:06:32.120 --> 00:06:38.600
new orbiting observatory will spend the next
month checking systems and calibrating instruments before beginning
72
00:06:38.600 --> 00:06:43.639
a three year scientific mission. Once
operational, CHRISM will study some of the
73
00:06:43.680 --> 00:06:47.399
hardest objects in the universe, such
as neutron stars, black holes as they're
74
00:06:47.480 --> 00:06:55.240
feeding, and massive galaxy clusters.
CHRISMS Principal investigator Richard Kelly from NASA's Gottat
75
00:06:55.279 --> 00:06:59.399
Space Flight Center in green Belt,
Maryland, says the spacecraft will also examine
76
00:06:59.439 --> 00:07:03.560
the aftermath of stellar explosions, and
it will examine these speed of light particle
77
00:07:03.720 --> 00:07:10.399
jets being launched from supermassive black holes
at the centers of galaxies. CHRISM will
78
00:07:10.399 --> 00:07:15.959
detect X rays with energies ranging from
four hundred to twelve thousand electron vaults.
79
00:07:15.000 --> 00:07:19.079
Now by comparison, the energy of
visible light is around two to three electron
80
00:07:19.160 --> 00:07:26.040
vaults. The electron vault range selected
by scientists will provide astro physicists with new
81
00:07:26.040 --> 00:07:30.879
information about some of the universe's hottest
regions, some of its largest structures,
82
00:07:30.920 --> 00:07:35.600
and objects with the strongest gravity.
The mission has two principal instruments, Resolve
83
00:07:35.680 --> 00:07:43.319
and EXTEND. Resolve as a microcalorometer
spectrometer, developed in collaboration between NASA and
84
00:07:43.480 --> 00:07:47.759
JACKSA. When an X ray photon
hits resolves six by six pixel detector,
85
00:07:48.000 --> 00:07:54.120
its energy will cause a slight increase
in temperature. By measuring each individual X
86
00:07:54.199 --> 00:07:59.399
rays energy, the instrument provides information
about its source, such as its composition,
87
00:07:59.519 --> 00:08:03.680
it's and its physical state. But
to detect these tiny temperature changes,
88
00:08:03.879 --> 00:08:09.920
Resolve needs to operate as just a
fraction of degree above absolute zero minus two
89
00:08:09.000 --> 00:08:13.480
hundred and seventy three point one five
degrees celsius. To get that cold,
90
00:08:13.680 --> 00:08:20.920
Resolves equipped with a multi stage mechanical
cooling processor mounted inside a refrigerator size container
91
00:08:20.000 --> 00:08:26.199
of liquid helium. Chrism's second instrument, Extend, is an image that developed
92
00:08:26.199 --> 00:08:30.240
by Jackson to give the spacecraft one
of the largest fields of view of any
93
00:08:30.360 --> 00:08:33.720
X ray imaging satellite ever flown.
It will be able to observe an area
94
00:08:33.759 --> 00:08:39.320
about sixty percent larger than the average
apparent size of the Moon, and the
95
00:08:39.360 --> 00:08:45.120
images that collects will complement the data
being collected by Resolve. Each instrument is
96
00:08:45.159 --> 00:08:48.080
mounted at the focus of its own
X ray mirror assembly, designed and developed
97
00:08:48.120 --> 00:08:52.200
by Godard. See The thing is, X ray wavelengths are so short they
98
00:08:52.240 --> 00:08:56.679
pass straight between the atoms of dis
shape mirrors used to capture visible, infrared,
99
00:08:56.720 --> 00:09:03.559
and ultraviolet light become these issues.
X ray astronomers use nested, curved
100
00:09:03.559 --> 00:09:07.519
mirrors turn on their sides. When
X ray photons hit these mirrors, they'll
101
00:09:07.559 --> 00:09:11.960
skip off the surfaces and into the
detectors, just like a stone skipping across
102
00:09:13.000 --> 00:09:16.840
the surface of a pond. Each
of chrism's two mirrors houses hundreds of concentric,
103
00:09:16.919 --> 00:09:22.480
precisely shaped aluminum shells, builting quadrants
and assembled into a circle. In
104
00:09:22.519 --> 00:09:26.799
all, there are over thirty two
hundred individual mirror segments in the two mirror
105
00:09:26.799 --> 00:09:33.279
assemblies. Also aboard the h to
A rocket for the launch was Jackson's Smart
106
00:09:33.360 --> 00:09:39.080
Lander for Investigating the Moon, or
SLIM Spacecraft. SLIM is designed to demonstrate
107
00:09:39.200 --> 00:09:45.759
new accurate pinpoint lunar landing techniques.
NASA provided the laser retroreflector array used by
108
00:09:45.879 --> 00:09:50.759
SLIM as. Both agencies cooperate in
international effort to further explore the Moon and
109
00:09:50.000 --> 00:09:58.720
ultimately human exploration of Mars. This
report from NASS TV SO X rays really
110
00:09:58.879 --> 00:10:07.960
shows us that's the universe is very
argentina. We find X rays in jets
111
00:10:07.159 --> 00:10:13.440
erupting from the centers of active galaxies. We use them to measure the spin
112
00:10:13.919 --> 00:10:24.120
of black holes or supernova explosions.
It takes a powerful event to produce cosmic
113
00:10:24.279 --> 00:10:28.440
X rays. Sometimes people also called
the hot universe because you know when you
114
00:10:28.480 --> 00:10:33.639
have this gas in galaxy clusters or
also around galaxies that you can see only
115
00:10:33.679 --> 00:10:37.240
in X rays. This gas is
about ten million to one hundred million of
116
00:10:37.240 --> 00:10:41.320
degrees, which is so hot.
That's this gas does not radiating in opticals,
117
00:10:41.360 --> 00:10:45.240
does not radiating in fright, but
it only radiate an X rays.
118
00:10:46.879 --> 00:10:56.000
To further understand these hottest regions,
we need the next generation X ray telescope.
119
00:10:56.879 --> 00:11:01.600
The Japan Aerospace Exploration Agency or XA, is partnering with NASA and the
120
00:11:01.639 --> 00:11:11.120
European Space Agency to launch the next
generation X ray space telescope. The telescope,
121
00:11:11.320 --> 00:11:16.240
called CHRISM, weighs over five thousand
pounds, stands over thirty feet tall
122
00:11:16.639 --> 00:11:22.960
and will orbit approximately three hundred and
forty miles above Earth. We're familiar with
123
00:11:22.000 --> 00:11:26.960
the medical uses of X rays.
X ray light is energetic enough to pass
124
00:11:28.039 --> 00:11:33.240
through our skin. Our calcium dense
bones absorb that light, blocking it from
125
00:11:33.279 --> 00:11:39.519
reaching the detector and creating a shadow. Luckily for US, X rays from
126
00:11:39.600 --> 00:11:45.279
space don't make it through our atmosphere. But what that does mean is that
127
00:11:45.320 --> 00:11:50.080
we have to send X ray hunting
missions into orbit to detect this high energy
128
00:11:50.200 --> 00:11:56.440
light. CHRISM also needs special kinds
of mirrors, which are built at NASA's
129
00:11:56.440 --> 00:12:01.320
Goddard Space Flight Center. The type
of mirror is called a nested mirror.
130
00:12:03.080 --> 00:12:09.279
It looks like like a cross section
of the audience. X rays are so
131
00:12:09.440 --> 00:12:15.480
energetic they fly right through typical mirrors. For the visible light, we typically
132
00:12:15.879 --> 00:12:18.879
placed the mirror like for that light
just bounce back, but for the X
133
00:12:18.960 --> 00:12:24.720
rays this doesn't work, So that
we put the mirror like so that X
134
00:12:24.799 --> 00:12:31.559
rays just graze saurface of the shell. When they strike mirrors. At very
135
00:12:31.759 --> 00:12:37.120
shallow angles, X rays two can
bounce and then so we made it that
136
00:12:37.200 --> 00:12:43.799
like a corny call shell. Then
X ray can be directed. CHRISM has
137
00:12:43.840 --> 00:12:48.200
two instruments, each with their own
mirror assembly, one for imaging called Extend,
138
00:12:48.559 --> 00:12:56.639
the other for spectroscopy called Resolve.
Jack's a built Extend to provide chrism
139
00:12:56.720 --> 00:13:03.679
with a wide field of view.
It can observe an area about sixty percent
140
00:13:03.840 --> 00:13:13.120
larger than the average apparent size of
the full moon. NASA's Resolve instrument is
141
00:13:13.159 --> 00:13:18.480
a spectrometer that splits X ray light
like a prism so scientists can detect specific
142
00:13:18.559 --> 00:13:24.600
elements present in the sources they're studying. It uses a small six by six
143
00:13:24.639 --> 00:13:31.440
pixel detector called a micro calorimeter,
nestled in a refrigerator sized container of liquid
144
00:13:31.480 --> 00:13:39.279
helium. Resolve will measure the small
temperature changes caused when X rays hit one
145
00:13:39.320 --> 00:13:45.879
of those pixels. To track such
small temperature changes, resolves detectors must be
146
00:13:45.960 --> 00:13:52.919
kept extremely cold. That liquid helium
cryocooler will keep the instrument at point zero
147
00:13:54.120 --> 00:14:01.000
five degrees kelvin. It's so cold
it is a fraction of a degree above
148
00:14:01.200 --> 00:14:09.919
absolute zero. Heat is simply a
product of moving atoms. Keeping resolves detector
149
00:14:09.399 --> 00:14:16.720
that cold means that the atoms barely
move, so there's very little thermal noise
150
00:14:16.759 --> 00:14:30.639
in the system. It's what keeps
these accurate measurements possible. Each X ray
151
00:14:30.639 --> 00:14:35.279
detected will help scientists pursue many questions
about the hottest regions of the cosmos.
152
00:14:37.919 --> 00:14:48.120
What's happening in the extreme gravitational fields
around black holes? Can we discover what
153
00:14:48.279 --> 00:14:56.440
is inside a neutron star? How
did some of the universe's largest structures,
154
00:14:56.759 --> 00:15:07.039
like galaxy clusters evolve optical telescope you
will just see in galaxies everywhere if you
155
00:15:07.639 --> 00:15:09.399
if you look at this same cluster
of galaxies and X rays, you will
156
00:15:09.399 --> 00:15:13.480
see actually a lot of gas and
the gas it constitutes actually most of the
157
00:15:13.519 --> 00:15:18.679
matter the cluster of the galaxies,
which is something extreme important to understand because
158
00:15:18.679 --> 00:15:22.240
it means that most of the matter
in the universe is not in the form
159
00:15:22.279 --> 00:15:26.480
of planets or stars, but it's
really in the form and of these gas.
160
00:15:26.679 --> 00:15:35.480
So, but CHRISM really has this
capability of decomposing this extraelites in a
161
00:15:35.519 --> 00:15:46.039
way that's much much more accurate than
what has ever been done before. And
162
00:15:46.159 --> 00:15:50.600
in that report from Nassay TV,
we heard from NASSA Chrism mission lestro physicist
163
00:15:50.720 --> 00:15:58.120
Francis Maria at the Cashier Okajima this
space time still to come discovery of the
164
00:15:58.200 --> 00:16:03.559
local barry on a acoustic or oolation, and later in the Science report Australia
165
00:16:03.720 --> 00:16:07.440
on course for increasingly hot and dry
conditions. All that are more still the
166
00:16:07.519 --> 00:16:30.039
calm on space time. Astronomers have
discovered an immense bubble eight hundred twenty million
167
00:16:30.159 --> 00:16:33.559
light years from Earth that's believed to
be a fossil like remnant of the birth
168
00:16:33.600 --> 00:16:37.879
of the universe. The bubble is
thought to be the remains of a baryonic
169
00:16:37.919 --> 00:16:44.919
acoustic oscillation, a pressure wave of
fluctuation in the density of visible baryonic that
170
00:16:45.159 --> 00:16:48.960
is, normal matter caused by acoustic
density waves in the primordial plasma of the
171
00:16:49.000 --> 00:16:55.519
early universe. In the same way
that type one a supernova provide a standard
172
00:16:55.600 --> 00:17:00.679
candle for astronomical distance. Baryonic acoustic
oscillations are over dense cities of matter,
173
00:17:00.759 --> 00:17:04.640
such as galaxies and galaxy clusters,
and they're at set distances, just like
174
00:17:04.799 --> 00:17:11.359
standard candles or standard rulers at this
time on the scale of cosmology. The
175
00:17:11.480 --> 00:17:15.359
length of this standard ruler is given
by the maximum distance acoustic waves could travel
176
00:17:15.440 --> 00:17:19.680
in the primordial plasma before the plasma
cool to a point where it became neutral.
177
00:17:19.720 --> 00:17:26.000
Atoms that's the time of the epoch
of recombination, which stopped the expansion
178
00:17:26.000 --> 00:17:30.279
of the plasma density waves, freezing
them at a place. The length of
179
00:17:30.279 --> 00:17:33.839
this standard ruler is about four hundred
ninety million light years in today's universe,
180
00:17:34.519 --> 00:17:38.759
and it can be measured by looking
at the large scale structure of matter using
181
00:17:38.799 --> 00:17:45.440
astronomical surveys. Current Big Bang theory
tells us that during the first three hundred
182
00:17:45.519 --> 00:17:49.160
eighty thousand years of existence since the
universe came into being thirteen point eight billion
183
00:17:49.240 --> 00:17:53.880
years ago, it was a cauldron
of harkwark gluon plasma, and within this
184
00:17:55.039 --> 00:18:00.400
plasma, electrons were separated from atomic
nuclei. Now, during this period,
185
00:18:00.519 --> 00:18:04.599
regions with slightly higher densities began to
collapse under gravity, even as the intense
186
00:18:04.680 --> 00:18:11.119
bath of radiation was still attempting to
push matter apart. This struggle between gravity
187
00:18:11.160 --> 00:18:15.160
and radiation made the plasma oscillate or
ripple, and spread outwards. The very
188
00:18:15.279 --> 00:18:19.920
largest ripples in the other universe depend
on the distance a sound wave could travel,
189
00:18:21.720 --> 00:18:25.000
set by the speed of sound and
the plasma. This distance was the
190
00:18:25.039 --> 00:18:29.759
four hundred ninety million light years we
mentioned earlier, and it became fixed in
191
00:18:29.839 --> 00:18:34.720
place once the universe cooled and stopped
being a plasma, leaving vast three dimensional
192
00:18:34.839 --> 00:18:40.720
ripples in its wake. Then,
throughout the eons of the Universe's existence,
193
00:18:40.920 --> 00:18:45.960
galaxies and galaxy clusters formed at the
density peaks of these enormous bubble like structures.
194
00:18:47.519 --> 00:18:51.079
The remnants of this plasma, now
cooled down at just two point seven
195
00:18:51.079 --> 00:18:55.599
degrees above absolute zero, can still
be seen across the universe as the cosmic
196
00:18:55.720 --> 00:19:00.599
microwave background radiation. You probably know
it best as the faint white noise hiss
197
00:19:00.640 --> 00:19:07.799
you get between stations on old analog
radio and TV sets. The new structure,
198
00:19:07.799 --> 00:19:11.480
reported in the Astrophysical Journal, has
been named Holilana, a term drawn
199
00:19:11.519 --> 00:19:18.000
from an Hawaiian creation chant involving the
origins of structure. The studies lead author
200
00:19:18.160 --> 00:19:22.319
Brent Tully from the University of Hawaii
says he unexpectedly found the bubble while studying
201
00:19:22.400 --> 00:19:26.839
a web of galaxies. He says
his team weren't looking for it, but
202
00:19:26.880 --> 00:19:30.119
it was so huge that it's spilled
into the edges of the sector of the
203
00:19:30.160 --> 00:19:36.000
scar that they were analyzing, and
that piqued their interest as an enhancement in
204
00:19:36.039 --> 00:19:40.480
the density of galaxies. Turns out
this bubbles a much stronger feature than expected.
205
00:19:41.200 --> 00:19:45.480
The very large diameter of a billion
light years is beyond theoretical expectations.
206
00:19:47.240 --> 00:19:51.960
If its formation and evolution are in
accordance with theory, then this baryonic acoustic
207
00:19:52.000 --> 00:19:56.400
oscillation is closer than anticipated. That
implies a higher value for the expansion rate
208
00:19:56.440 --> 00:20:02.720
of the universe. Astronomer's low the
bubble using data from the Cosmic Flows For
209
00:20:02.960 --> 00:20:07.559
experiment, which is to date the
largest compilation of precise distances to galaxies.
210
00:20:08.279 --> 00:20:12.119
Tally Co published a catalog last year, and this may be the first time
211
00:20:12.200 --> 00:20:19.400
astronomers have identified an individual structure associated
with a baryonic acoustic oscillation. The discovery
212
00:20:19.440 --> 00:20:26.000
could help scientists bolster their knowledge on
the effects of galaxy evolution. The same
213
00:20:26.039 --> 00:20:30.519
team of researchers also identified the Lanier
Kya galaxy supercluster back in twenty fourteen.
214
00:20:32.359 --> 00:20:36.559
That structure, which includes their own
Milky Way galaxy on its outskirts, is
215
00:20:36.640 --> 00:20:41.680
small in comparison, stretching at a
diameter of about five hundred million light years.
216
00:20:41.880 --> 00:20:45.240
Laniar Key extends to the near edge
of this much larger bubble. Tully's
217
00:20:45.279 --> 00:20:49.759
team discovered that Ali Lana had already
been noted in the twenty sixteen research paper
218
00:20:49.920 --> 00:20:55.720
as the most prominent of several shell
like structures seen in the Sloan Digital All
219
00:20:55.799 --> 00:21:00.720
Sky survey. However, the earlier
work did not reveal the extent of the
220
00:21:00.759 --> 00:21:04.960
structure, and that team didn't conclude
that they had found was the baryonic acoustic
221
00:21:06.000 --> 00:21:10.839
oscillation. Using the Cosmic Flows full
catalog, the authors were able to see
222
00:21:10.880 --> 00:21:15.000
a full spherical shell of galaxies,
identify its center and show that there really
223
00:21:15.039 --> 00:21:21.119
is a statistical enhancement in the density
of galaxies in all directions from that center.
224
00:21:22.079 --> 00:21:26.519
Lellana encovers as many well known structures
previously found by astronomers, such as
225
00:21:26.519 --> 00:21:30.640
the Harvard Smithsonian Great Wall containing the
Coma cluster, the Hercules cluster, and
226
00:21:30.720 --> 00:21:37.720
the Slowing Great Wall, the Boeties
supercluster resides at its center. Computer simulations
227
00:21:37.720 --> 00:21:42.920
have demonstrated that the shell structure identified
as or Orlelana as less than a one
228
00:21:44.000 --> 00:21:49.240
percent probability of being a statistical accident. Alilana has all the properties of a
229
00:21:49.359 --> 00:21:56.480
theoretically anticipated baryonic acoustic oscillation, including
the prominence of a rich supercluster at its
230
00:21:56.480 --> 00:22:00.640
center. However, it does stand
out stronger than expect. Also, a
231
00:22:00.799 --> 00:22:06.200
Elana is slightly larger than anticipated based
on the theory of the Standard Model of
232
00:22:06.240 --> 00:22:11.640
cosmology, but the size isn't accord
with observations of the local expansion rate of
233
00:22:11.680 --> 00:22:15.720
the universe and of galaxy flows on
large scales. That also hinted subtle problems
234
00:22:15.799 --> 00:22:37.039
with the Standard Model. This space
time and Time that to take a brief
235
00:22:37.079 --> 00:22:41.240
look at some of the other stories
making us in science this week with the
236
00:22:41.319 --> 00:22:45.519
Science Report. A new study has
found a worrying change in the Indian Ocean
237
00:22:45.680 --> 00:22:52.000
surface temperatures, which are putting Southeast
Australia on course for what it expected to
238
00:22:52.039 --> 00:22:57.000
be increasingly hot and dry conditions.
The Indian Ocean dipole was found to be
239
00:22:57.079 --> 00:23:03.559
a major contributor to the severe drought
and record hot temperatures seen across Australia last
240
00:23:03.640 --> 00:23:07.319
year. The event, known as
a positive Indian Ocean dipole, cut off
241
00:23:07.359 --> 00:23:12.400
one of the major sources for Southern
Australia's winter and spring rains. It also
242
00:23:12.440 --> 00:23:17.519
set up the extremely hot and dry
conditions which promoted the Black Summer bush fires
243
00:23:17.559 --> 00:23:22.240
of twenty nineteen and twenty twenty.
The new research are reported in the journal
244
00:23:22.319 --> 00:23:27.039
Nature Reveals that these historically rare events
have become far more frequent and intense over
245
00:23:27.039 --> 00:23:33.599
the past century, and the situation
is expected to continue to worsen if greenhouse
246
00:23:33.599 --> 00:23:38.559
gas emissions continue to rise. To
reach their conclusions, scientists used coral records
247
00:23:38.559 --> 00:23:45.400
from the eastern equatorial Indian Ocean to
reconstruct Indian Ocean dipole variability over the last
248
00:23:45.480 --> 00:23:51.839
millennium with unprecedented precision, and the
authors found that historically strong events like last
249
00:23:51.960 --> 00:23:56.880
year were incredibly rare. In fact, since the year twelve forty, scientists
250
00:23:56.880 --> 00:24:02.079
could identify only ten of these extreme
events, but four of those ten took
251
00:24:02.119 --> 00:24:07.119
place in the last sixty years.
The research also showed that a persistent tight
252
00:24:07.240 --> 00:24:11.519
coupling has existed between the variability of
the Indian Ocean dipole and the Elnino southern
253
00:24:11.519 --> 00:24:18.119
oscillation in the Pacific Ocean during the
last millennium. While the Indian Ocean dipole
254
00:24:18.200 --> 00:24:22.039
and El Nino events can occur independently, periods of large year to year swings
255
00:24:22.079 --> 00:24:29.880
in the Indian oation variability also heightened
Elno's southern oscillation variability across in the Pacific.
256
00:24:32.240 --> 00:24:36.680
Scientists have shown how the Black Death
made the human immune system what it
257
00:24:36.759 --> 00:24:41.519
is today. Infectious diseases are one
of the strongest drivers of human evolution,
258
00:24:41.880 --> 00:24:48.359
and a pandemic can cause the genes
involved in immune responses to evolve rapidly.
259
00:24:48.000 --> 00:24:52.680
The study, reported in the journal
Nature, analyzed ancient DNA samples from five
260
00:24:52.799 --> 00:24:56.960
hundred and sixteen individuals, all of
whom died about the time of the Black
261
00:24:57.000 --> 00:25:03.240
Death in the fourteenth century. They
identified two hundred and forty five genetic variants.
262
00:25:03.319 --> 00:25:07.039
They are all very different when comparing
pre and post Black Death samples.
263
00:25:07.799 --> 00:25:15.480
The variance associated with protection from Black
Death bacterium overlap with genes associated with increased
264
00:25:15.480 --> 00:25:21.640
susceptibility to autoimmune diseases. The authors
say this highlights the contribution of a natural
265
00:25:21.720 --> 00:25:27.559
selection of present day susceptibility towards chronic
inflammatory and autoimmune diseases. The Black Death
266
00:25:27.640 --> 00:25:33.440
is considered the deadliest plague to be
recorded in human history, causing the deaths
267
00:25:33.440 --> 00:25:37.920
of somewhere between seventy five million and
two hundred million people. The pestilence was
268
00:25:37.960 --> 00:25:45.039
a bubonic plague pandemic which infected western
Eurasia countries as well as northern Africa between
269
00:25:45.119 --> 00:25:49.119
thirteen forty six and thirteen fifty three. The Black Death is estimated to have
270
00:25:49.200 --> 00:25:53.160
killed between thirty and sixty percent of
the European population, as well as a
271
00:25:53.319 --> 00:25:59.319
third of the population of the Middle
East. It's caused by the bacterium Yeshinia
272
00:25:59.440 --> 00:26:03.960
pests, which is spread by fleas, but it can also take a secondary
273
00:26:03.960 --> 00:26:07.200
form, or it's spread through a
person to person contact by aerosols, causing
274
00:26:07.359 --> 00:26:14.359
neneumonic plagues. The plague created religious, social, and economic upheavals with profound
275
00:26:14.440 --> 00:26:18.880
effects on the course of European history. The pandemics thought of originated either from
276
00:26:18.920 --> 00:26:23.759
Central or Eastern Asia, but its
first definitive appearance was in the Crimea in
277
00:26:23.880 --> 00:26:29.759
thirteen forty seven. From Crimea,
it was most likely carried by fleas living
278
00:26:29.759 --> 00:26:34.799
on black rats. These traveled on
Genoese trading ships, spreading throughout the Mediterranean
279
00:26:34.839 --> 00:26:40.119
Basin and reaching North Africa, Western
Asia, and the rest of Europe through
280
00:26:40.160 --> 00:26:45.880
Constantinople, Sicily and the Italian Peninsula. There's evidence that once it came ashore,
281
00:26:45.000 --> 00:26:49.720
black death quickly spread person to person
as inneumonic plague, and of course
282
00:26:49.759 --> 00:26:53.759
it wasn't just a single event.
There were further outbreaks throughout the later Middle
283
00:26:53.799 --> 00:27:00.400
Ages, even continuing right through to
the early nineteenth century. Sist of the
284
00:27:00.440 --> 00:27:06.400
black death include fever, headaches,
painful aching joints, nausea with vomiting,
285
00:27:06.519 --> 00:27:10.880
a general feeling of malaise, and
the appearance of buboes in the groin,
286
00:27:11.079 --> 00:27:15.680
neck, and armpits which use pass
and blood when opened. Left untreated,
287
00:27:15.880 --> 00:27:23.200
eighty percent of those who contracted bubonic
plague would die within eight days. Siters
288
00:27:23.240 --> 00:27:27.880
have found that baling whales around the
coast of California are estimated to ingest up
289
00:27:27.920 --> 00:27:33.200
to ten million pieces of microplastics every
day. The findings were reported in the
290
00:27:33.279 --> 00:27:40.680
journal Nature Communications. Combine microplastic data
from the California Current with high resolution foraging
291
00:27:40.720 --> 00:27:45.119
behavior measurements from one hundred and ninety
one TAGG baling whales, including blue fin
292
00:27:45.319 --> 00:27:51.599
and humpback whales. They found that
baling whales mainly fit at depths of fifty
293
00:27:51.599 --> 00:27:55.839
to two hundred and fifty meters and
that just happens to be where most microplastics
294
00:27:55.839 --> 00:28:00.359
are found now. Based on their
measurements, the authors estimate that blue wales
295
00:28:00.440 --> 00:28:06.039
could consume up to ten million microplastic
pieces every day, while humpback whales will
296
00:28:06.039 --> 00:28:11.519
still be consuming around four million pieces
daily. The findings suggests that baaliing whales
297
00:28:11.599 --> 00:28:15.880
may consume the most plastic of any
organisms, and that microplastics could pose a
298
00:28:15.960 --> 00:28:22.920
far greater risk to these whales than
previously thought. There's growing concern in the
299
00:28:22.920 --> 00:28:30.680
international community about the honesty and trustworthiness
of the World Health Organization, the world's
300
00:28:30.720 --> 00:28:36.680
most powerful health authority, recently celebrated
at seventy fifth birthday. The WHO was
301
00:28:36.720 --> 00:28:41.160
originally set up by the United Nations
to fight global diseases and provide medical treatments
302
00:28:41.200 --> 00:28:47.319
to underdeveloped in Third world countries,
but according to the medical Fraternity, the
303
00:28:47.559 --> 00:28:52.559
WHO appears to have lost its way. In recent years. It's been pushing
304
00:28:52.720 --> 00:28:59.079
dangerous pseudo scientific treatments, including alternative
medicine practices such as nature apathy, traditional
305
00:28:59.160 --> 00:29:04.200
Chinese medicine, homeopathy, and a
uvetic treatments. The situation grew worse after
306
00:29:04.319 --> 00:29:10.359
t Dross, a former guerrilla in
Ethiopius socialist Tigray People's Liberation Front, became
307
00:29:10.599 --> 00:29:15.519
WHO Director General with the backing of
the Chinese government. Then, in twenty
308
00:29:15.599 --> 00:29:21.079
seventeen, t Dross appointed Zimbabwe's asked
that socialist President Robert mcgabe to serve as
309
00:29:21.079 --> 00:29:26.119
a WHO goodwill Ambassador mcgabe, a
self described Marxist Leninist, had by this
310
00:29:26.240 --> 00:29:30.599
stage been accused by the European Union, the Innited Nations Security Council, the
311
00:29:30.759 --> 00:29:37.240
Human Rights Watch and the Zimbabwe Council
of Churches of being a dictator and responsible
312
00:29:37.240 --> 00:29:41.160
for economic mismanagement and widespread corruption,
as well as human rights abuses, including
313
00:29:41.200 --> 00:29:47.200
anti white racism and crimes against humanity. It was also on the ted Dross
314
00:29:47.240 --> 00:29:52.720
in twenty twenty that the WHO ignored
warnings from front line doctors about a fast
315
00:29:52.759 --> 00:29:57.319
spreading new pandemic in China, which
later became known as COVID nineteen. This
316
00:29:57.640 --> 00:30:03.039
failure to respond gave the deadly virus
the time it needed to quickly spread globally,
317
00:30:03.279 --> 00:30:07.880
killing an estimated eighteen million people so
far. To amend them from a
318
00:30:07.960 --> 00:30:12.319
strange skeptics says, now, instead
of focusing on the provision of medical care
319
00:30:12.319 --> 00:30:18.960
to those who need it, the
WHO is again promoting dangerous pseudo scientific treatments.
320
00:30:18.240 --> 00:30:22.480
In most cases, we's done a
great job. It's been so instrumental
321
00:30:22.519 --> 00:30:26.440
in treating sort of diseases around the
world, especially in the world countries of
322
00:30:26.480 --> 00:30:29.680
vaccimation and that sort of thing.
So it's a very important body, so
323
00:30:29.720 --> 00:30:33.200
to see it going in certain directions
is a worry. And over the last
324
00:30:33.240 --> 00:30:36.359
decade or so there have been signs, and they've sort of started off with
325
00:30:36.440 --> 00:30:40.839
the promotion of traditional Chinese medicine,
saying that this is a valid part of
326
00:30:40.880 --> 00:30:44.160
medicine and should be regarded as part
of normal treatments, et cetera. So
327
00:30:44.160 --> 00:30:48.359
it's given the intromater of the who
there's so much in traditional Chinese medicine which
328
00:30:48.400 --> 00:30:52.640
is frankly which doctor stuff here is
it's just magical thinking pretending to be ancient
329
00:30:52.640 --> 00:30:56.680
medicine or something. But most of
it's just sort of something You take some
330
00:30:56.759 --> 00:30:59.240
of the stuff that's in there and
you develop it and l like you do
331
00:30:59.319 --> 00:31:02.440
with any sort of actual product,
and you find the actual working product.
332
00:31:02.480 --> 00:31:06.400
But most of traditional medicine is based
on very ready uncientific theories. Okay,
333
00:31:06.440 --> 00:31:08.720
that's one aspect. At the same
time, it's been pushing naturopathy, which
334
00:31:08.759 --> 00:31:12.680
is definitely magical thinking about the spirit
of the body helping you cure, et
335
00:31:12.759 --> 00:31:17.000
cetera, and that promotes the whole
range of pseudo sciences as well, and
336
00:31:17.279 --> 00:31:22.720
homeopathy. Will think the homeopathy is
jumps another way of saying it. It
337
00:31:22.759 --> 00:31:26.200
can't work, it doesn't work,
it shouldn't work, and it doesn't work.
338
00:31:26.240 --> 00:31:27.640
So I mean the WHO to be
pushing that. Now, there's a
339
00:31:27.640 --> 00:31:32.440
lot of conspiracy theories about it,
the reasons why the person who was running
340
00:31:32.599 --> 00:31:36.599
WHO for a while he was pushing
Chinese medicine, and other suggestions that China
341
00:31:36.680 --> 00:31:38.640
is a big thunder of the WHO, so they're trying to plaque eate a
342
00:31:40.119 --> 00:31:45.920
Chinese approach to medicine. We've certainly
seen Chinese involvement in administration of the WHO
343
00:31:45.000 --> 00:31:52.079
of lateran the WH refused to acknowledge
the problems of COVID nineteen until very late.
344
00:31:52.559 --> 00:31:56.440
It was one of its great feelings
and that was brought about by pressure
345
00:31:56.440 --> 00:31:59.720
by the Chinese government. Yeah so
yeah, we can probably say there's the
346
00:32:00.240 --> 00:32:02.599
pressure from the Chinese government on a
whole range of areas of medicine. I've
347
00:32:02.680 --> 00:32:07.119
spoken to a number of people in
Australia who are concerned about influence on research
348
00:32:07.160 --> 00:32:09.799
activities, funding and control and sort
of pushing certain areas before you're in for
349
00:32:09.880 --> 00:32:12.960
I had a Nobel Prize with her
who said that to me, it's a
350
00:32:12.960 --> 00:32:15.839
concern and the concern of where the
WHO is heading by trying to be a
351
00:32:15.880 --> 00:32:20.400
bit too inclusive. Now the reasons
for that was up to everybody to figure
352
00:32:20.400 --> 00:32:22.759
out, but certainly the very factor
of actually endorsing and saying that these things
353
00:32:22.799 --> 00:32:27.920
are valid when they're not, and
coming from such an august body is a
354
00:32:27.960 --> 00:32:30.559
real worry and it's an ongoing worrying. We have been sort of mentioning it
355
00:32:30.599 --> 00:32:35.519
ourselves, but so is the world
basically that is really concerned about this.
356
00:32:35.759 --> 00:32:57.079
That's temendum from Australian skeptics, and
that's the show for now. Space Time
357
00:32:57.200 --> 00:33:01.200
is available every Monday, Wednesday and
Friday through Apple Podcasts, iTunes, Stitcher,
358
00:33:01.400 --> 00:33:07.799
Google podcast, pocket Casts, Spotify, Acast, Amazon Music, bytes
359
00:33:07.839 --> 00:33:12.759
dot Com, SoundCloud, YouTube,
your favorite podcasts, download Provider, and
360
00:33:12.960 --> 00:33:17.599
from Spacetime with Stewart Gary dot com. Spacetimes also broadcast through the National Science
361
00:33:17.640 --> 00:33:23.039
Foundation, on Science Zone Radio and
on both iHeartRadio and tune In Radio.
362
00:33:23.119 --> 00:33:27.880
And you can help to support our
show by visiting the Spacetime Store for a
363
00:33:28.000 --> 00:33:32.240
range of promotional merchandising goodies, or
by becoming a Spacetime Patron, which gives
364
00:33:32.240 --> 00:33:37.079
you access to triple episode commercial free
versions of the show, as well as
365
00:33:37.119 --> 00:33:40.240
lots of burnus audio content which doesn't
go to wear, access to our exclusive
366
00:33:40.279 --> 00:33:45.480
Facebook group and other rewards. Just
go to Spacetime with Stewart Gary dot com
367
00:33:45.480 --> 00:33:50.880
for full details and if you want
more Spacetime please check out our blog where
368
00:33:50.920 --> 00:33:52.799
you'll find all the stuff we couldn't
fit in the show, as well as
369
00:33:52.839 --> 00:33:58.119
heaps of images, news stories,
loads of videos and things on the whereby
370
00:33:58.200 --> 00:34:01.920
find interesting or amusing. Just go
to Spacetime with Stewart Gary dot Tumbler dot
371
00:34:01.960 --> 00:34:07.559
com. That's all one word,
and that's Tumbler without the E. You
372
00:34:07.640 --> 00:34:10.960
can also follow us through at Stewart
Gary on Twitter, at Spacetime with Stewart
373
00:34:12.000 --> 00:34:15.880
Garry on Instagram, through our Spacetime
YouTube channel, and on Facebook. Just
374
00:34:15.960 --> 00:34:22.320
go to Facebook dot com, forward
slash Spacetime with Stewart Gary and Spacetime is
375
00:34:22.360 --> 00:34:25.800
brought to you in collaboration with Australian
Sky and Telescope Magazine. Your window on
376
00:34:25.840 --> 00:34:30.960
the universe. You've been listening to
Spacetime with Stewart Gary. This has been
377
00:34:31.000 --> 00:34:37.159
another quality podcast production from bites dot
com.
1
00:00:00.560 --> 00:00:05.000
This is Spacetime Series twenty six,
Episode one hundred and nine, for broadcast
2
00:00:05.080 --> 00:00:10.199
on the eleventh of September twenty twenty
three. Coming up on Spacetime, Have
3
00:00:10.359 --> 00:00:17.839
they finally found Planet X? Japan's
Chrism space telescope launches into orbit and discovery
4
00:00:17.920 --> 00:00:24.079
of our own local baryonic acoustic oscillation. All that and more coming up on
5
00:00:24.239 --> 00:00:49.079
Spacetime Welcome to Spacetime with Stewart Garry. Astronomers in Japan have found possible evidence
6
00:00:49.200 --> 00:00:54.000
of an earthlike planet orbiting in the
Kaiper Belt. The findings are reported in
7
00:00:54.039 --> 00:00:58.399
the Astronomical Journal and on the pre
Press physics website archive dot org. Are
8
00:00:58.479 --> 00:01:03.799
based on the discovery event usual orbits
for several Carper Belt objects, and suggest
9
00:01:03.840 --> 00:01:08.239
a large Earth size planet orbiting around
five hundred astronomical units out from the Sun.
10
00:01:08.920 --> 00:01:12.840
An astronomical unit is the average distance
between the Sun and the Earth,
11
00:01:14.079 --> 00:01:18.640
roughly one hundred and fifty million kilometers
or eight point three light minutes. The
12
00:01:18.799 --> 00:01:23.040
Kiper Belt is a ring of comets, icy worlds, and frozen debris circling
13
00:01:23.040 --> 00:01:27.640
the Sun out beyond the orbit of
Neptune, which orbits some thirty astronomical units
14
00:01:27.680 --> 00:01:33.640
out from the Sun. The dwarf
planets Pluto and Sharon are probably the best
15
00:01:33.760 --> 00:01:38.200
known Carper Belt objects. The new
statis authors Patrick's to Fear like Kakwa from
16
00:01:38.280 --> 00:01:45.000
Kindai University and Takashi Eater from the
National Astronomical Observatory of Japan, describe the
17
00:01:45.079 --> 00:01:51.359
orbital properties of trans Neptunian objects,
which appear to be consistent with gravitational perturbations
18
00:01:51.439 --> 00:01:55.040
that would have been caused by a
planet not much bigger than the Earth orbiting
19
00:01:55.040 --> 00:02:00.920
Among them, They also found a
significant number of Carper built objects at inclination
20
00:02:00.120 --> 00:02:06.920
orbits. Intrigued by their findings,
follow up computer simulations designed to explain their
21
00:02:06.959 --> 00:02:12.919
observations showed that the most likely explanation
was a relatively large carbo built object,
22
00:02:13.120 --> 00:02:16.919
such as a planet. The simulations
also showed that such a planet, if
23
00:02:16.960 --> 00:02:21.000
it exists, would have a mass
of between one and a half and three
24
00:02:21.159 --> 00:02:24.960
times that of the Earth, an
inclination of approximately thirty degrees to the ecliptic
25
00:02:25.120 --> 00:02:30.080
that is the plane where the planets
roughly orbit the Sun, and an orbit
26
00:02:30.120 --> 00:02:34.560
that would take the planet between two
hundred and fifty and five hundred astronomical units
27
00:02:34.599 --> 00:02:38.599
out from the Sun. The new
findings are just the latest effort in an
28
00:02:38.639 --> 00:02:43.560
ongoing search for a so called planet
nine, sometimes referred to as planet X.
29
00:02:44.159 --> 00:02:47.280
But what makes this new effort so
interesting is that the suspected planets orbiting
30
00:02:47.400 --> 00:02:53.080
much closer and than what previous studies
have suggested. The first solid hints of
31
00:02:53.080 --> 00:02:57.520
a possible planet X or planet nine
came to light over a decade ago when
32
00:02:57.599 --> 00:03:01.879
astronomers were looking for objects which could
pose a threat to the New Horizon spacecraft,
33
00:03:01.919 --> 00:03:06.000
which at that time was on a
mission to study Pluto on the Kuiper
34
00:03:06.039 --> 00:03:12.319
Belt. As they undertook their surveys, astronomers noticed some unusual gravitational perturbations in
35
00:03:12.360 --> 00:03:15.719
the orbit of thirteen Kiper Belt objects, thought to have been caused by interactions
36
00:03:15.759 --> 00:03:22.360
with a yet to be discovered massive
planet sized body. Then, careful calculations
37
00:03:22.360 --> 00:03:25.879
of the orbit of a Kuiper Belt
object twenty twelve VP one thirteen by planet
38
00:03:25.960 --> 00:03:30.759
hunters in twenty fourteen led to the
detection of similarities in the orbits of several
39
00:03:30.840 --> 00:03:37.719
other distant Kuiper Belt objects, and
it resulted in the new hypothesis postulating the
40
00:03:37.719 --> 00:03:43.199
possible existence of an unknown planet X
or planet nine, now based on the
41
00:03:43.199 --> 00:03:46.599
earlier observations, the undiscovered world would
be up to four times the size of
42
00:03:46.599 --> 00:03:52.240
the Earth and around nine times Earth's
mass. Now that's a lot bigger what's
43
00:03:52.280 --> 00:03:54.919
being proposed now. Also, the
orbit was very different too. It was
44
00:03:54.960 --> 00:04:00.240
on a highly elongated orbit around the
Sun, estimated to last at least fifteen
45
00:04:00.400 --> 00:04:03.879
thousand earth years. If it exists, the mysterious planet X could be an
46
00:04:03.879 --> 00:04:09.199
interstellar rogue planet captured by the Sun's
gravitational pool, or it could be a
47
00:04:09.240 --> 00:04:13.319
planet that was stolen by the Sun's
gravity from a neighboring star system early in
48
00:04:13.319 --> 00:04:15.839
the history of the Solar System,
when the Sun was just leaving it still
49
00:04:15.839 --> 00:04:20.959
a nursery. Another option is that
there are several models of planets in migration
50
00:04:21.040 --> 00:04:26.240
within the Solar System, which suggests
that as Jupiter and Satin migrated out to
51
00:04:26.319 --> 00:04:31.199
their current orbital positions, their gravitational
perturbations caused Neptune and Uranus to also move
52
00:04:31.319 --> 00:04:36.680
outwards in the process, swapping their
orbital positions and flinging a third ice giant,
53
00:04:36.720 --> 00:04:41.040
which was part of the group,
out into the Kiper Belt or possibly
54
00:04:41.079 --> 00:04:46.000
even beyond into interstellar space as a
rogue planet. Oh And as for the
55
00:04:46.000 --> 00:04:49.519
indecision between planet X and Planet nine. Well, the first ideas of a
56
00:04:49.600 --> 00:04:54.800
planet X in the Kiper Belt came
at a time when Plutter was still considered
57
00:04:54.800 --> 00:04:59.759
a fully fledged planet before it was
demoted to dwarf planet status, and so
58
00:05:00.040 --> 00:05:04.720
Skyper Belt World would have been a
tenth planet a planet X. This is
59
00:05:04.720 --> 00:05:12.439
space time still to come. Japan's
CHRISM space telescope launches into orbit and discovery
60
00:05:12.560 --> 00:05:17.759
of our own local barryonic acoustic oscillation
all that them or still to come on
61
00:05:18.040 --> 00:05:40.560
spacetime. A powerful new Japanese X
ray telescope is just blasted into orbit.
62
00:05:41.240 --> 00:05:45.759
The X ray Imaging in Spectroscopy mission
CHRISM was launched aboard an H two a
63
00:05:46.040 --> 00:05:58.759
rocket from the Tankashima Space Center in
southern Japan's just a gossip. We have
64
00:05:58.879 --> 00:06:02.079
a liftoff of the H Dwey launch
peak or number of forty seven from jack
65
00:06:02.160 --> 00:06:08.000
Start and the Gustimos based center at
age forty two and level seconds am on
66
00:06:08.120 --> 00:06:13.240
September stables depounced unt of time.
The H Dewey is now flying about the
67
00:06:13.319 --> 00:06:17.839
amount of an ocean duley least led
by Jackson, the Japan Aerospace Exploration Agency
68
00:06:17.959 --> 00:06:21.800
and collaboration with NASA and the European
Space Agency, the two thousand, three
69
00:06:21.879 --> 00:06:27.439
hundred kilograms spacecraft was placed into a
five hundred and fifty kilometer high orbit.
70
00:06:28.079 --> 00:06:32.079
Jackson had been forced to scrub three
earlier launch attempts hit bad weather. The
71
00:06:32.120 --> 00:06:38.600
new orbiting observatory will spend the next
month checking systems and calibrating instruments before beginning
72
00:06:38.600 --> 00:06:43.639
a three year scientific mission. Once
operational, CHRISM will study some of the
73
00:06:43.680 --> 00:06:47.399
hardest objects in the universe, such
as neutron stars, black holes as they're
74
00:06:47.480 --> 00:06:55.240
feeding, and massive galaxy clusters.
CHRISMS Principal investigator Richard Kelly from NASA's Gottat
75
00:06:55.279 --> 00:06:59.399
Space Flight Center in green Belt,
Maryland, says the spacecraft will also examine
76
00:06:59.439 --> 00:07:03.560
the aftermath of stellar explosions, and
it will examine these speed of light particle
77
00:07:03.720 --> 00:07:10.399
jets being launched from supermassive black holes
at the centers of galaxies. CHRISM will
78
00:07:10.399 --> 00:07:15.959
detect X rays with energies ranging from
four hundred to twelve thousand electron vaults.
79
00:07:15.000 --> 00:07:19.079
Now by comparison, the energy of
visible light is around two to three electron
80
00:07:19.160 --> 00:07:26.040
vaults. The electron vault range selected
by scientists will provide astro physicists with new
81
00:07:26.040 --> 00:07:30.879
information about some of the universe's hottest
regions, some of its largest structures,
82
00:07:30.920 --> 00:07:35.600
and objects with the strongest gravity.
The mission has two principal instruments, Resolve
83
00:07:35.680 --> 00:07:43.319
and EXTEND. Resolve as a microcalorometer
spectrometer, developed in collaboration between NASA and
84
00:07:43.480 --> 00:07:47.759
JACKSA. When an X ray photon
hits resolves six by six pixel detector,
85
00:07:48.000 --> 00:07:54.120
its energy will cause a slight increase
in temperature. By measuring each individual X
86
00:07:54.199 --> 00:07:59.399
rays energy, the instrument provides information
about its source, such as its composition,
87
00:07:59.519 --> 00:08:03.680
it's and its physical state. But
to detect these tiny temperature changes,
88
00:08:03.879 --> 00:08:09.920
Resolve needs to operate as just a
fraction of degree above absolute zero minus two
89
00:08:09.000 --> 00:08:13.480
hundred and seventy three point one five
degrees celsius. To get that cold,
90
00:08:13.680 --> 00:08:20.920
Resolves equipped with a multi stage mechanical
cooling processor mounted inside a refrigerator size container
91
00:08:20.000 --> 00:08:26.199
of liquid helium. Chrism's second instrument, Extend, is an image that developed
92
00:08:26.199 --> 00:08:30.240
by Jackson to give the spacecraft one
of the largest fields of view of any
93
00:08:30.360 --> 00:08:33.720
X ray imaging satellite ever flown.
It will be able to observe an area
94
00:08:33.759 --> 00:08:39.320
about sixty percent larger than the average
apparent size of the Moon, and the
95
00:08:39.360 --> 00:08:45.120
images that collects will complement the data
being collected by Resolve. Each instrument is
96
00:08:45.159 --> 00:08:48.080
mounted at the focus of its own
X ray mirror assembly, designed and developed
97
00:08:48.120 --> 00:08:52.200
by Godard. See The thing is, X ray wavelengths are so short they
98
00:08:52.240 --> 00:08:56.679
pass straight between the atoms of dis
shape mirrors used to capture visible, infrared,
99
00:08:56.720 --> 00:09:03.559
and ultraviolet light become these issues.
X ray astronomers use nested, curved
100
00:09:03.559 --> 00:09:07.519
mirrors turn on their sides. When
X ray photons hit these mirrors, they'll
101
00:09:07.559 --> 00:09:11.960
skip off the surfaces and into the
detectors, just like a stone skipping across
102
00:09:13.000 --> 00:09:16.840
the surface of a pond. Each
of chrism's two mirrors houses hundreds of concentric,
103
00:09:16.919 --> 00:09:22.480
precisely shaped aluminum shells, builting quadrants
and assembled into a circle. In
104
00:09:22.519 --> 00:09:26.799
all, there are over thirty two
hundred individual mirror segments in the two mirror
105
00:09:26.799 --> 00:09:33.279
assemblies. Also aboard the h to
A rocket for the launch was Jackson's Smart
106
00:09:33.360 --> 00:09:39.080
Lander for Investigating the Moon, or
SLIM Spacecraft. SLIM is designed to demonstrate
107
00:09:39.200 --> 00:09:45.759
new accurate pinpoint lunar landing techniques.
NASA provided the laser retroreflector array used by
108
00:09:45.879 --> 00:09:50.759
SLIM as. Both agencies cooperate in
international effort to further explore the Moon and
109
00:09:50.000 --> 00:09:58.720
ultimately human exploration of Mars. This
report from NASS TV SO X rays really
110
00:09:58.879 --> 00:10:07.960
shows us that's the universe is very
argentina. We find X rays in jets
111
00:10:07.159 --> 00:10:13.440
erupting from the centers of active galaxies. We use them to measure the spin
112
00:10:13.919 --> 00:10:24.120
of black holes or supernova explosions.
It takes a powerful event to produce cosmic
113
00:10:24.279 --> 00:10:28.440
X rays. Sometimes people also called
the hot universe because you know when you
114
00:10:28.480 --> 00:10:33.639
have this gas in galaxy clusters or
also around galaxies that you can see only
115
00:10:33.679 --> 00:10:37.240
in X rays. This gas is
about ten million to one hundred million of
116
00:10:37.240 --> 00:10:41.320
degrees, which is so hot.
That's this gas does not radiating in opticals,
117
00:10:41.360 --> 00:10:45.240
does not radiating in fright, but
it only radiate an X rays.
118
00:10:46.879 --> 00:10:56.000
To further understand these hottest regions,
we need the next generation X ray telescope.
119
00:10:56.879 --> 00:11:01.600
The Japan Aerospace Exploration Agency or XA, is partnering with NASA and the
120
00:11:01.639 --> 00:11:11.120
European Space Agency to launch the next
generation X ray space telescope. The telescope,
121
00:11:11.320 --> 00:11:16.240
called CHRISM, weighs over five thousand
pounds, stands over thirty feet tall
122
00:11:16.639 --> 00:11:22.960
and will orbit approximately three hundred and
forty miles above Earth. We're familiar with
123
00:11:22.000 --> 00:11:26.960
the medical uses of X rays.
X ray light is energetic enough to pass
124
00:11:28.039 --> 00:11:33.240
through our skin. Our calcium dense
bones absorb that light, blocking it from
125
00:11:33.279 --> 00:11:39.519
reaching the detector and creating a shadow. Luckily for US, X rays from
126
00:11:39.600 --> 00:11:45.279
space don't make it through our atmosphere. But what that does mean is that
127
00:11:45.320 --> 00:11:50.080
we have to send X ray hunting
missions into orbit to detect this high energy
128
00:11:50.200 --> 00:11:56.440
light. CHRISM also needs special kinds
of mirrors, which are built at NASA's
129
00:11:56.440 --> 00:12:01.320
Goddard Space Flight Center. The type
of mirror is called a nested mirror.
130
00:12:03.080 --> 00:12:09.279
It looks like like a cross section
of the audience. X rays are so
131
00:12:09.440 --> 00:12:15.480
energetic they fly right through typical mirrors. For the visible light, we typically
132
00:12:15.879 --> 00:12:18.879
placed the mirror like for that light
just bounce back, but for the X
133
00:12:18.960 --> 00:12:24.720
rays this doesn't work, So that
we put the mirror like so that X
134
00:12:24.799 --> 00:12:31.559
rays just graze saurface of the shell. When they strike mirrors. At very
135
00:12:31.759 --> 00:12:37.120
shallow angles, X rays two can
bounce and then so we made it that
136
00:12:37.200 --> 00:12:43.799
like a corny call shell. Then
X ray can be directed. CHRISM has
137
00:12:43.840 --> 00:12:48.200
two instruments, each with their own
mirror assembly, one for imaging called Extend,
138
00:12:48.559 --> 00:12:56.639
the other for spectroscopy called Resolve.
Jack's a built Extend to provide chrism
139
00:12:56.720 --> 00:13:03.679
with a wide field of view.
It can observe an area about sixty percent
140
00:13:03.840 --> 00:13:13.120
larger than the average apparent size of
the full moon. NASA's Resolve instrument is
141
00:13:13.159 --> 00:13:18.480
a spectrometer that splits X ray light
like a prism so scientists can detect specific
142
00:13:18.559 --> 00:13:24.600
elements present in the sources they're studying. It uses a small six by six
143
00:13:24.639 --> 00:13:31.440
pixel detector called a micro calorimeter,
nestled in a refrigerator sized container of liquid
144
00:13:31.480 --> 00:13:39.279
helium. Resolve will measure the small
temperature changes caused when X rays hit one
145
00:13:39.320 --> 00:13:45.879
of those pixels. To track such
small temperature changes, resolves detectors must be
146
00:13:45.960 --> 00:13:52.919
kept extremely cold. That liquid helium
cryocooler will keep the instrument at point zero
147
00:13:54.120 --> 00:14:01.000
five degrees kelvin. It's so cold
it is a fraction of a degree above
148
00:14:01.200 --> 00:14:09.919
absolute zero. Heat is simply a
product of moving atoms. Keeping resolves detector
149
00:14:09.399 --> 00:14:16.720
that cold means that the atoms barely
move, so there's very little thermal noise
150
00:14:16.759 --> 00:14:30.639
in the system. It's what keeps
these accurate measurements possible. Each X ray
151
00:14:30.639 --> 00:14:35.279
detected will help scientists pursue many questions
about the hottest regions of the cosmos.
152
00:14:37.919 --> 00:14:48.120
What's happening in the extreme gravitational fields
around black holes? Can we discover what
153
00:14:48.279 --> 00:14:56.440
is inside a neutron star? How
did some of the universe's largest structures,
154
00:14:56.759 --> 00:15:07.039
like galaxy clusters evolve optical telescope you
will just see in galaxies everywhere if you
155
00:15:07.639 --> 00:15:09.399
if you look at this same cluster
of galaxies and X rays, you will
156
00:15:09.399 --> 00:15:13.480
see actually a lot of gas and
the gas it constitutes actually most of the
157
00:15:13.519 --> 00:15:18.679
matter the cluster of the galaxies,
which is something extreme important to understand because
158
00:15:18.679 --> 00:15:22.240
it means that most of the matter
in the universe is not in the form
159
00:15:22.279 --> 00:15:26.480
of planets or stars, but it's
really in the form and of these gas.
160
00:15:26.679 --> 00:15:35.480
So, but CHRISM really has this
capability of decomposing this extraelites in a
161
00:15:35.519 --> 00:15:46.039
way that's much much more accurate than
what has ever been done before. And
162
00:15:46.159 --> 00:15:50.600
in that report from Nassay TV,
we heard from NASSA Chrism mission lestro physicist
163
00:15:50.720 --> 00:15:58.120
Francis Maria at the Cashier Okajima this
space time still to come discovery of the
164
00:15:58.200 --> 00:16:03.559
local barry on a acoustic or oolation, and later in the Science report Australia
165
00:16:03.720 --> 00:16:07.440
on course for increasingly hot and dry
conditions. All that are more still the
166
00:16:07.519 --> 00:16:30.039
calm on space time. Astronomers have
discovered an immense bubble eight hundred twenty million
167
00:16:30.159 --> 00:16:33.559
light years from Earth that's believed to
be a fossil like remnant of the birth
168
00:16:33.600 --> 00:16:37.879
of the universe. The bubble is
thought to be the remains of a baryonic
169
00:16:37.919 --> 00:16:44.919
acoustic oscillation, a pressure wave of
fluctuation in the density of visible baryonic that
170
00:16:45.159 --> 00:16:48.960
is, normal matter caused by acoustic
density waves in the primordial plasma of the
171
00:16:49.000 --> 00:16:55.519
early universe. In the same way
that type one a supernova provide a standard
172
00:16:55.600 --> 00:17:00.679
candle for astronomical distance. Baryonic acoustic
oscillations are over dense cities of matter,
173
00:17:00.759 --> 00:17:04.640
such as galaxies and galaxy clusters,
and they're at set distances, just like
174
00:17:04.799 --> 00:17:11.359
standard candles or standard rulers at this
time on the scale of cosmology. The
175
00:17:11.480 --> 00:17:15.359
length of this standard ruler is given
by the maximum distance acoustic waves could travel
176
00:17:15.440 --> 00:17:19.680
in the primordial plasma before the plasma
cool to a point where it became neutral.
177
00:17:19.720 --> 00:17:26.000
Atoms that's the time of the epoch
of recombination, which stopped the expansion
178
00:17:26.000 --> 00:17:30.279
of the plasma density waves, freezing
them at a place. The length of
179
00:17:30.279 --> 00:17:33.839
this standard ruler is about four hundred
ninety million light years in today's universe,
180
00:17:34.519 --> 00:17:38.759
and it can be measured by looking
at the large scale structure of matter using
181
00:17:38.799 --> 00:17:45.440
astronomical surveys. Current Big Bang theory
tells us that during the first three hundred
182
00:17:45.519 --> 00:17:49.160
eighty thousand years of existence since the
universe came into being thirteen point eight billion
183
00:17:49.240 --> 00:17:53.880
years ago, it was a cauldron
of harkwark gluon plasma, and within this
184
00:17:55.039 --> 00:18:00.400
plasma, electrons were separated from atomic
nuclei. Now, during this period,
185
00:18:00.519 --> 00:18:04.599
regions with slightly higher densities began to
collapse under gravity, even as the intense
186
00:18:04.680 --> 00:18:11.119
bath of radiation was still attempting to
push matter apart. This struggle between gravity
187
00:18:11.160 --> 00:18:15.160
and radiation made the plasma oscillate or
ripple, and spread outwards. The very
188
00:18:15.279 --> 00:18:19.920
largest ripples in the other universe depend
on the distance a sound wave could travel,
189
00:18:21.720 --> 00:18:25.000
set by the speed of sound and
the plasma. This distance was the
190
00:18:25.039 --> 00:18:29.759
four hundred ninety million light years we
mentioned earlier, and it became fixed in
191
00:18:29.839 --> 00:18:34.720
place once the universe cooled and stopped
being a plasma, leaving vast three dimensional
192
00:18:34.839 --> 00:18:40.720
ripples in its wake. Then,
throughout the eons of the Universe's existence,
193
00:18:40.920 --> 00:18:45.960
galaxies and galaxy clusters formed at the
density peaks of these enormous bubble like structures.
194
00:18:47.519 --> 00:18:51.079
The remnants of this plasma, now
cooled down at just two point seven
195
00:18:51.079 --> 00:18:55.599
degrees above absolute zero, can still
be seen across the universe as the cosmic
196
00:18:55.720 --> 00:19:00.599
microwave background radiation. You probably know
it best as the faint white noise hiss
197
00:19:00.640 --> 00:19:07.799
you get between stations on old analog
radio and TV sets. The new structure,
198
00:19:07.799 --> 00:19:11.480
reported in the Astrophysical Journal, has
been named Holilana, a term drawn
199
00:19:11.519 --> 00:19:18.000
from an Hawaiian creation chant involving the
origins of structure. The studies lead author
200
00:19:18.160 --> 00:19:22.319
Brent Tully from the University of Hawaii
says he unexpectedly found the bubble while studying
201
00:19:22.400 --> 00:19:26.839
a web of galaxies. He says
his team weren't looking for it, but
202
00:19:26.880 --> 00:19:30.119
it was so huge that it's spilled
into the edges of the sector of the
203
00:19:30.160 --> 00:19:36.000
scar that they were analyzing, and
that piqued their interest as an enhancement in
204
00:19:36.039 --> 00:19:40.480
the density of galaxies. Turns out
this bubbles a much stronger feature than expected.
205
00:19:41.200 --> 00:19:45.480
The very large diameter of a billion
light years is beyond theoretical expectations.
206
00:19:47.240 --> 00:19:51.960
If its formation and evolution are in
accordance with theory, then this baryonic acoustic
207
00:19:52.000 --> 00:19:56.400
oscillation is closer than anticipated. That
implies a higher value for the expansion rate
208
00:19:56.440 --> 00:20:02.720
of the universe. Astronomer's low the
bubble using data from the Cosmic Flows For
209
00:20:02.960 --> 00:20:07.559
experiment, which is to date the
largest compilation of precise distances to galaxies.
210
00:20:08.279 --> 00:20:12.119
Tally Co published a catalog last year, and this may be the first time
211
00:20:12.200 --> 00:20:19.400
astronomers have identified an individual structure associated
with a baryonic acoustic oscillation. The discovery
212
00:20:19.440 --> 00:20:26.000
could help scientists bolster their knowledge on
the effects of galaxy evolution. The same
213
00:20:26.039 --> 00:20:30.519
team of researchers also identified the Lanier
Kya galaxy supercluster back in twenty fourteen.
214
00:20:32.359 --> 00:20:36.559
That structure, which includes their own
Milky Way galaxy on its outskirts, is
215
00:20:36.640 --> 00:20:41.680
small in comparison, stretching at a
diameter of about five hundred million light years.
216
00:20:41.880 --> 00:20:45.240
Laniar Key extends to the near edge
of this much larger bubble. Tully's
217
00:20:45.279 --> 00:20:49.759
team discovered that Ali Lana had already
been noted in the twenty sixteen research paper
218
00:20:49.920 --> 00:20:55.720
as the most prominent of several shell
like structures seen in the Sloan Digital All
219
00:20:55.799 --> 00:21:00.720
Sky survey. However, the earlier
work did not reveal the extent of the
220
00:21:00.759 --> 00:21:04.960
structure, and that team didn't conclude
that they had found was the baryonic acoustic
221
00:21:06.000 --> 00:21:10.839
oscillation. Using the Cosmic Flows full
catalog, the authors were able to see
222
00:21:10.880 --> 00:21:15.000
a full spherical shell of galaxies,
identify its center and show that there really
223
00:21:15.039 --> 00:21:21.119
is a statistical enhancement in the density
of galaxies in all directions from that center.
224
00:21:22.079 --> 00:21:26.519
Lellana encovers as many well known structures
previously found by astronomers, such as
225
00:21:26.519 --> 00:21:30.640
the Harvard Smithsonian Great Wall containing the
Coma cluster, the Hercules cluster, and
226
00:21:30.720 --> 00:21:37.720
the Slowing Great Wall, the Boeties
supercluster resides at its center. Computer simulations
227
00:21:37.720 --> 00:21:42.920
have demonstrated that the shell structure identified
as or Orlelana as less than a one
228
00:21:44.000 --> 00:21:49.240
percent probability of being a statistical accident. Alilana has all the properties of a
229
00:21:49.359 --> 00:21:56.480
theoretically anticipated baryonic acoustic oscillation, including
the prominence of a rich supercluster at its
230
00:21:56.480 --> 00:22:00.640
center. However, it does stand
out stronger than expect. Also, a
231
00:22:00.799 --> 00:22:06.200
Elana is slightly larger than anticipated based
on the theory of the Standard Model of
232
00:22:06.240 --> 00:22:11.640
cosmology, but the size isn't accord
with observations of the local expansion rate of
233
00:22:11.680 --> 00:22:15.720
the universe and of galaxy flows on
large scales. That also hinted subtle problems
234
00:22:15.799 --> 00:22:37.039
with the Standard Model. This space
time and Time that to take a brief
235
00:22:37.079 --> 00:22:41.240
look at some of the other stories
making us in science this week with the
236
00:22:41.319 --> 00:22:45.519
Science Report. A new study has
found a worrying change in the Indian Ocean
237
00:22:45.680 --> 00:22:52.000
surface temperatures, which are putting Southeast
Australia on course for what it expected to
238
00:22:52.039 --> 00:22:57.000
be increasingly hot and dry conditions.
The Indian Ocean dipole was found to be
239
00:22:57.079 --> 00:23:03.559
a major contributor to the severe drought
and record hot temperatures seen across Australia last
240
00:23:03.640 --> 00:23:07.319
year. The event, known as
a positive Indian Ocean dipole, cut off
241
00:23:07.359 --> 00:23:12.400
one of the major sources for Southern
Australia's winter and spring rains. It also
242
00:23:12.440 --> 00:23:17.519
set up the extremely hot and dry
conditions which promoted the Black Summer bush fires
243
00:23:17.559 --> 00:23:22.240
of twenty nineteen and twenty twenty.
The new research are reported in the journal
244
00:23:22.319 --> 00:23:27.039
Nature Reveals that these historically rare events
have become far more frequent and intense over
245
00:23:27.039 --> 00:23:33.599
the past century, and the situation
is expected to continue to worsen if greenhouse
246
00:23:33.599 --> 00:23:38.559
gas emissions continue to rise. To
reach their conclusions, scientists used coral records
247
00:23:38.559 --> 00:23:45.400
from the eastern equatorial Indian Ocean to
reconstruct Indian Ocean dipole variability over the last
248
00:23:45.480 --> 00:23:51.839
millennium with unprecedented precision, and the
authors found that historically strong events like last
249
00:23:51.960 --> 00:23:56.880
year were incredibly rare. In fact, since the year twelve forty, scientists
250
00:23:56.880 --> 00:24:02.079
could identify only ten of these extreme
events, but four of those ten took
251
00:24:02.119 --> 00:24:07.119
place in the last sixty years.
The research also showed that a persistent tight
252
00:24:07.240 --> 00:24:11.519
coupling has existed between the variability of
the Indian Ocean dipole and the Elnino southern
253
00:24:11.519 --> 00:24:18.119
oscillation in the Pacific Ocean during the
last millennium. While the Indian Ocean dipole
254
00:24:18.200 --> 00:24:22.039
and El Nino events can occur independently, periods of large year to year swings
255
00:24:22.079 --> 00:24:29.880
in the Indian oation variability also heightened
Elno's southern oscillation variability across in the Pacific.
256
00:24:32.240 --> 00:24:36.680
Scientists have shown how the Black Death
made the human immune system what it
257
00:24:36.759 --> 00:24:41.519
is today. Infectious diseases are one
of the strongest drivers of human evolution,
258
00:24:41.880 --> 00:24:48.359
and a pandemic can cause the genes
involved in immune responses to evolve rapidly.
259
00:24:48.000 --> 00:24:52.680
The study, reported in the journal
Nature, analyzed ancient DNA samples from five
260
00:24:52.799 --> 00:24:56.960
hundred and sixteen individuals, all of
whom died about the time of the Black
261
00:24:57.000 --> 00:25:03.240
Death in the fourteenth century. They
identified two hundred and forty five genetic variants.
262
00:25:03.319 --> 00:25:07.039
They are all very different when comparing
pre and post Black Death samples.
263
00:25:07.799 --> 00:25:15.480
The variance associated with protection from Black
Death bacterium overlap with genes associated with increased
264
00:25:15.480 --> 00:25:21.640
susceptibility to autoimmune diseases. The authors
say this highlights the contribution of a natural
265
00:25:21.720 --> 00:25:27.559
selection of present day susceptibility towards chronic
inflammatory and autoimmune diseases. The Black Death
266
00:25:27.640 --> 00:25:33.440
is considered the deadliest plague to be
recorded in human history, causing the deaths
267
00:25:33.440 --> 00:25:37.920
of somewhere between seventy five million and
two hundred million people. The pestilence was
268
00:25:37.960 --> 00:25:45.039
a bubonic plague pandemic which infected western
Eurasia countries as well as northern Africa between
269
00:25:45.119 --> 00:25:49.119
thirteen forty six and thirteen fifty three. The Black Death is estimated to have
270
00:25:49.200 --> 00:25:53.160
killed between thirty and sixty percent of
the European population, as well as a
271
00:25:53.319 --> 00:25:59.319
third of the population of the Middle
East. It's caused by the bacterium Yeshinia
272
00:25:59.440 --> 00:26:03.960
pests, which is spread by fleas, but it can also take a secondary
273
00:26:03.960 --> 00:26:07.200
form, or it's spread through a
person to person contact by aerosols, causing
274
00:26:07.359 --> 00:26:14.359
neneumonic plagues. The plague created religious, social, and economic upheavals with profound
275
00:26:14.440 --> 00:26:18.880
effects on the course of European history. The pandemics thought of originated either from
276
00:26:18.920 --> 00:26:23.759
Central or Eastern Asia, but its
first definitive appearance was in the Crimea in
277
00:26:23.880 --> 00:26:29.759
thirteen forty seven. From Crimea,
it was most likely carried by fleas living
278
00:26:29.759 --> 00:26:34.799
on black rats. These traveled on
Genoese trading ships, spreading throughout the Mediterranean
279
00:26:34.839 --> 00:26:40.119
Basin and reaching North Africa, Western
Asia, and the rest of Europe through
280
00:26:40.160 --> 00:26:45.880
Constantinople, Sicily and the Italian Peninsula. There's evidence that once it came ashore,
281
00:26:45.000 --> 00:26:49.720
black death quickly spread person to person
as inneumonic plague, and of course
282
00:26:49.759 --> 00:26:53.759
it wasn't just a single event.
There were further outbreaks throughout the later Middle
283
00:26:53.799 --> 00:27:00.400
Ages, even continuing right through to
the early nineteenth century. Sist of the
284
00:27:00.440 --> 00:27:06.400
black death include fever, headaches,
painful aching joints, nausea with vomiting,
285
00:27:06.519 --> 00:27:10.880
a general feeling of malaise, and
the appearance of buboes in the groin,
286
00:27:11.079 --> 00:27:15.680
neck, and armpits which use pass
and blood when opened. Left untreated,
287
00:27:15.880 --> 00:27:23.200
eighty percent of those who contracted bubonic
plague would die within eight days. Siters
288
00:27:23.240 --> 00:27:27.880
have found that baling whales around the
coast of California are estimated to ingest up
289
00:27:27.920 --> 00:27:33.200
to ten million pieces of microplastics every
day. The findings were reported in the
290
00:27:33.279 --> 00:27:40.680
journal Nature Communications. Combine microplastic data
from the California Current with high resolution foraging
291
00:27:40.720 --> 00:27:45.119
behavior measurements from one hundred and ninety
one TAGG baling whales, including blue fin
292
00:27:45.319 --> 00:27:51.599
and humpback whales. They found that
baling whales mainly fit at depths of fifty
293
00:27:51.599 --> 00:27:55.839
to two hundred and fifty meters and
that just happens to be where most microplastics
294
00:27:55.839 --> 00:28:00.359
are found now. Based on their
measurements, the authors estimate that blue wales
295
00:28:00.440 --> 00:28:06.039
could consume up to ten million microplastic
pieces every day, while humpback whales will
296
00:28:06.039 --> 00:28:11.519
still be consuming around four million pieces
daily. The findings suggests that baaliing whales
297
00:28:11.599 --> 00:28:15.880
may consume the most plastic of any
organisms, and that microplastics could pose a
298
00:28:15.960 --> 00:28:22.920
far greater risk to these whales than
previously thought. There's growing concern in the
299
00:28:22.920 --> 00:28:30.680
international community about the honesty and trustworthiness
of the World Health Organization, the world's
300
00:28:30.720 --> 00:28:36.680
most powerful health authority, recently celebrated
at seventy fifth birthday. The WHO was
301
00:28:36.720 --> 00:28:41.160
originally set up by the United Nations
to fight global diseases and provide medical treatments
302
00:28:41.200 --> 00:28:47.319
to underdeveloped in Third world countries,
but according to the medical Fraternity, the
303
00:28:47.559 --> 00:28:52.559
WHO appears to have lost its way. In recent years. It's been pushing
304
00:28:52.720 --> 00:28:59.079
dangerous pseudo scientific treatments, including alternative
medicine practices such as nature apathy, traditional
305
00:28:59.160 --> 00:29:04.200
Chinese medicine, homeopathy, and a
uvetic treatments. The situation grew worse after
306
00:29:04.319 --> 00:29:10.359
t Dross, a former guerrilla in
Ethiopius socialist Tigray People's Liberation Front, became
307
00:29:10.599 --> 00:29:15.519
WHO Director General with the backing of
the Chinese government. Then, in twenty
308
00:29:15.599 --> 00:29:21.079
seventeen, t Dross appointed Zimbabwe's asked
that socialist President Robert mcgabe to serve as
309
00:29:21.079 --> 00:29:26.119
a WHO goodwill Ambassador mcgabe, a
self described Marxist Leninist, had by this
310
00:29:26.240 --> 00:29:30.599
stage been accused by the European Union, the Innited Nations Security Council, the
311
00:29:30.759 --> 00:29:37.240
Human Rights Watch and the Zimbabwe Council
of Churches of being a dictator and responsible
312
00:29:37.240 --> 00:29:41.160
for economic mismanagement and widespread corruption,
as well as human rights abuses, including
313
00:29:41.200 --> 00:29:47.200
anti white racism and crimes against humanity. It was also on the ted Dross
314
00:29:47.240 --> 00:29:52.720
in twenty twenty that the WHO ignored
warnings from front line doctors about a fast
315
00:29:52.759 --> 00:29:57.319
spreading new pandemic in China, which
later became known as COVID nineteen. This
316
00:29:57.640 --> 00:30:03.039
failure to respond gave the deadly virus
the time it needed to quickly spread globally,
317
00:30:03.279 --> 00:30:07.880
killing an estimated eighteen million people so
far. To amend them from a
318
00:30:07.960 --> 00:30:12.319
strange skeptics says, now, instead
of focusing on the provision of medical care
319
00:30:12.319 --> 00:30:18.960
to those who need it, the
WHO is again promoting dangerous pseudo scientific treatments.
320
00:30:18.240 --> 00:30:22.480
In most cases, we's done a
great job. It's been so instrumental
321
00:30:22.519 --> 00:30:26.440
in treating sort of diseases around the
world, especially in the world countries of
322
00:30:26.480 --> 00:30:29.680
vaccimation and that sort of thing.
So it's a very important body, so
323
00:30:29.720 --> 00:30:33.200
to see it going in certain directions
is a worry. And over the last
324
00:30:33.240 --> 00:30:36.359
decade or so there have been signs, and they've sort of started off with
325
00:30:36.440 --> 00:30:40.839
the promotion of traditional Chinese medicine,
saying that this is a valid part of
326
00:30:40.880 --> 00:30:44.160
medicine and should be regarded as part
of normal treatments, et cetera. So
327
00:30:44.160 --> 00:30:48.359
it's given the intromater of the who
there's so much in traditional Chinese medicine which
328
00:30:48.400 --> 00:30:52.640
is frankly which doctor stuff here is
it's just magical thinking pretending to be ancient
329
00:30:52.640 --> 00:30:56.680
medicine or something. But most of
it's just sort of something You take some
330
00:30:56.759 --> 00:30:59.240
of the stuff that's in there and
you develop it and l like you do
331
00:30:59.319 --> 00:31:02.440
with any sort of actual product,
and you find the actual working product.
332
00:31:02.480 --> 00:31:06.400
But most of traditional medicine is based
on very ready uncientific theories. Okay,
333
00:31:06.440 --> 00:31:08.720
that's one aspect. At the same
time, it's been pushing naturopathy, which
334
00:31:08.759 --> 00:31:12.680
is definitely magical thinking about the spirit
of the body helping you cure, et
335
00:31:12.759 --> 00:31:17.000
cetera, and that promotes the whole
range of pseudo sciences as well, and
336
00:31:17.279 --> 00:31:22.720
homeopathy. Will think the homeopathy is
jumps another way of saying it. It
337
00:31:22.759 --> 00:31:26.200
can't work, it doesn't work,
it shouldn't work, and it doesn't work.
338
00:31:26.240 --> 00:31:27.640
So I mean the WHO to be
pushing that. Now, there's a
339
00:31:27.640 --> 00:31:32.440
lot of conspiracy theories about it,
the reasons why the person who was running
340
00:31:32.599 --> 00:31:36.599
WHO for a while he was pushing
Chinese medicine, and other suggestions that China
341
00:31:36.680 --> 00:31:38.640
is a big thunder of the WHO, so they're trying to plaque eate a
342
00:31:40.119 --> 00:31:45.920
Chinese approach to medicine. We've certainly
seen Chinese involvement in administration of the WHO
343
00:31:45.000 --> 00:31:52.079
of lateran the WH refused to acknowledge
the problems of COVID nineteen until very late.
344
00:31:52.559 --> 00:31:56.440
It was one of its great feelings
and that was brought about by pressure
345
00:31:56.440 --> 00:31:59.720
by the Chinese government. Yeah so
yeah, we can probably say there's the
346
00:32:00.240 --> 00:32:02.599
pressure from the Chinese government on a
whole range of areas of medicine. I've
347
00:32:02.680 --> 00:32:07.119
spoken to a number of people in
Australia who are concerned about influence on research
348
00:32:07.160 --> 00:32:09.799
activities, funding and control and sort
of pushing certain areas before you're in for
349
00:32:09.880 --> 00:32:12.960
I had a Nobel Prize with her
who said that to me, it's a
350
00:32:12.960 --> 00:32:15.839
concern and the concern of where the
WHO is heading by trying to be a
351
00:32:15.880 --> 00:32:20.400
bit too inclusive. Now the reasons
for that was up to everybody to figure
352
00:32:20.400 --> 00:32:22.759
out, but certainly the very factor
of actually endorsing and saying that these things
353
00:32:22.799 --> 00:32:27.920
are valid when they're not, and
coming from such an august body is a
354
00:32:27.960 --> 00:32:30.559
real worry and it's an ongoing worrying. We have been sort of mentioning it
355
00:32:30.599 --> 00:32:35.519
ourselves, but so is the world
basically that is really concerned about this.
356
00:32:35.759 --> 00:32:57.079
That's temendum from Australian skeptics, and
that's the show for now. Space Time
357
00:32:57.200 --> 00:33:01.200
is available every Monday, Wednesday and
Friday through Apple Podcasts, iTunes, Stitcher,
358
00:33:01.400 --> 00:33:07.799
Google podcast, pocket Casts, Spotify, Acast, Amazon Music, bytes
359
00:33:07.839 --> 00:33:12.759
dot Com, SoundCloud, YouTube,
your favorite podcasts, download Provider, and
360
00:33:12.960 --> 00:33:17.599
from Spacetime with Stewart Gary dot com. Spacetimes also broadcast through the National Science
361
00:33:17.640 --> 00:33:23.039
Foundation, on Science Zone Radio and
on both iHeartRadio and tune In Radio.
362
00:33:23.119 --> 00:33:27.880
And you can help to support our
show by visiting the Spacetime Store for a
363
00:33:28.000 --> 00:33:32.240
range of promotional merchandising goodies, or
by becoming a Spacetime Patron, which gives
364
00:33:32.240 --> 00:33:37.079
you access to triple episode commercial free
versions of the show, as well as
365
00:33:37.119 --> 00:33:40.240
lots of burnus audio content which doesn't
go to wear, access to our exclusive
366
00:33:40.279 --> 00:33:45.480
Facebook group and other rewards. Just
go to Spacetime with Stewart Gary dot com
367
00:33:45.480 --> 00:33:50.880
for full details and if you want
more Spacetime please check out our blog where
368
00:33:50.920 --> 00:33:52.799
you'll find all the stuff we couldn't
fit in the show, as well as
369
00:33:52.839 --> 00:33:58.119
heaps of images, news stories,
loads of videos and things on the whereby
370
00:33:58.200 --> 00:34:01.920
find interesting or amusing. Just go
to Spacetime with Stewart Gary dot Tumbler dot
371
00:34:01.960 --> 00:34:07.559
com. That's all one word,
and that's Tumbler without the E. You
372
00:34:07.640 --> 00:34:10.960
can also follow us through at Stewart
Gary on Twitter, at Spacetime with Stewart
373
00:34:12.000 --> 00:34:15.880
Garry on Instagram, through our Spacetime
YouTube channel, and on Facebook. Just
374
00:34:15.960 --> 00:34:22.320
go to Facebook dot com, forward
slash Spacetime with Stewart Gary and Spacetime is
375
00:34:22.360 --> 00:34:25.800
brought to you in collaboration with Australian
Sky and Telescope Magazine. Your window on
376
00:34:25.840 --> 00:34:30.960
the universe. You've been listening to
Spacetime with Stewart Gary. This has been
377
00:34:31.000 --> 00:34:37.159
another quality podcast production from bites dot
com.
Spotify
Apple Podcasts
Youtube Music
iHeartRadio
Spreaker
PocketCasts
Amazon Music
YouTube
Castbox
Deezer
TuneIn
Rumble
Overcast
Podcast Addict
Podchaser
JioSaavn
Castro
RSS Feed