The Birth of a Black Hole and Mars’ New Navigation


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SpaceTime with Stuart Gary Gary - Series 29 Episode 24
In this episode of SpaceTime , we uncover astonishing discoveries about the birth of black holes, a revolutionary Martian navigation system, and the arrival of NASA's SpaceX Crew 12 at the International Space Station.
The Birth of a Black Hole: A New Perspective
Astronomers have made a groundbreaking discovery by observing a star in the Andromeda Galaxy collapsing into a black hole without the expected supernova explosion. The star, catalogued as M31 2014 DS1, was seen glowing brightly in infrared light before fading away, leaving behind a dust shell. This event, which had been anticipated for decades, suggests that massive stars may collapse directly into black holes, challenging long-held assumptions about stellar deaths. The findings, published in the journal Science, provide new insights into the processes that govern black hole formation and indicate that such direct collapses may be more common than previously thought.
NASA's New Martian Navigation System
NASA has introduced an innovative navigation system for its Perseverance rover, allowing it to determine its location on Mars with remarkable precision—within 25 centimeters. The new technology, called Mars Global Localization, enables the rover to autonomously compare panoramic images with orbital terrain maps, eliminating the need for Earth-based assistance. This advancement significantly enhances the rover's ability to explore the Martian surface independently, paving the way for more extensive scientific investigations.
SpaceX Crew 12 Arrives at the ISS
NASA's SpaceX Crew 12 has successfully docked with the International Space Station, restoring the crew complement to seven members. The mission includes a diverse crew of two Americans, a Russian, and a French astronaut, who will conduct approximately 250 scientific experiments in orbit. Additionally, NASA has approved a sixth private mission to the ISS, slated for next year, which aims to support new research initiatives and infrastructure development for future human spaceflight missions.
www.spacetimewithstuartgary.com (https://www.spacetimewithstuartgary.com/)
✍️ Episode References
Journal Science, NASA Reports
Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-with-stuart-gary--2458531/support (https://www.spreaker.com/podcast/spacetime-with-stuart-gary--2458531/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) .
Episode link: https://play.headliner.app/episode/31877069?utm_source=youtube
Kind: captions
Language: en
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This is Spacetime Series 29, episode 24
00:00:03.360 --> 00:00:05.510
for broadcast on the 25th of February
00:00:05.520 --> 00:00:07.110
2026.
00:00:07.120 --> 00:00:10.070
Coming up on Spaceime, the clearest view
00:00:10.080 --> 00:00:13.030
yet of the birth of a black hole, a new
00:00:13.040 --> 00:00:15.270
Martian navigation system for use on the
00:00:15.280 --> 00:00:18.870
red planet, and NASA's SpaceX Crew 12
00:00:18.880 --> 00:00:20.630
arrives aboard the International Space
00:00:20.640 --> 00:00:23.029
Station as the agency approves a sixth
00:00:23.039 --> 00:00:25.830
private mission to the orbiting outpost.
00:00:25.840 --> 00:00:44.790
All that and more coming up on Spaceime.
00:00:44.800 --> 00:00:46.869
Astronomers have discovered a star
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collapsing down to form a black hole
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without the expected blinding blast of a
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supernova explosion. Back in 2014, a
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NASA telescope observed infrared
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emissions coming from a massive star in
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the Andromeda galaxy M31, which
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gradually grew brighter. The star glowed
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more intensely with infrared light for
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around 3 years before finally fading
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dramatically and disappearing, leaving
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behind a shell of dust. Now, astronomers
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have determined what they witnessed was
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a star collapsing and giving birth to a
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stellar mass black hole. The study's
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lead author Kishali D from Columbia
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University says this is an event
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astronomers had anticipated for decades
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but have had limited convincing
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observational evidence for until now.
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The findings reported in the journal
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Science show a star undergoing direct
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collapse turning into a black hole
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without first exploding and becoming a
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supernova. Long believed to be a common
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method for highmass stars to become
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black holes. The progenitor star was a
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huge hydrogen- depleted super giant
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named M31 2014 DS1 located some 2 and a
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half million lighty years away. When
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newly formed, this star was around 13
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times the mass of our sun. But at the
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time of its death, it would have been
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closer to five solar masses, having shed
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most of its mass through powerful
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stellar winds during its life. D says
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the dramatic and sustained fading of the
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star was very unusual and suggests a
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supernova failed to occur leading to the
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collapse of the stars c directly into a
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black hole. Now stars with this sort of
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mass have long been assumed to always
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explode a supernova. The fact that it
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didn't suggests that stars with this
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sort of mass range may or may not
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successfully explode. possibly due to
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how gravity, gas pressure, and powerful
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shock waves interact in chaotic ways
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with each other inside the dying star.
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The manner in which the star turned into
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a black hole suggest that at the end of
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its life, its inner core wasn't pushed
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out in a normal supernova explosion,
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instead undergoing a complete inward
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collapse.
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Now, this process of direct collapse to
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form a black hole may have been seen at
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least once before. It was back in 2010
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in the galaxy NGC6946,
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which is about 10 times further away
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than this star. But the exact nature of
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that event was unclear and hotly debated
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in astronomical circles because it was
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100 times fainter and there wasn't
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enough highquality data available about
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it. Now, astronomers have long known
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that stellar mass black holes are caused
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by the death of massive stars. Black
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holes were first theorized more than 50
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years ago, and today we know of dozens
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in our own galaxy and hundreds of others
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detected from gravitational wave
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observations across the distant
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universe. However, scientists still have
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no clear consensus on which stars turned
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into black holes and how that process
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plays out. This discovery provides the
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clearest insights yet into this and
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indicates that this kind of stellar
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collapse may happen more often than
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scientists had previously thought. The
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authors discovered the star by analyzing
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archival data from NASA's Neoise
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mission. They used a prediction from the
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1970s that theorized that when a star
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underwent direct collapse, it would
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leave behind a faint infrared glow
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caused by the dying gasp of the star
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shedding its outer layers and becoming
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enshrouded in dust. So they conducted
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the largest study of variable infrared
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sources ever carried out, tracking every
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star in the Milky Way and other local
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galaxies to try and search out for these
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events and eventually they came across
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M31 2014 DS1. Further analysis showed
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that this star fitted their predictions
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perfectly. D says, "Unlike finding a
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supernova, which is easy because
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supernova outshine the galaxies they're
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in for weeks at a time, finding
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individual stars that disappear without
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producing an explosion is incredibly
00:04:42.960 --> 00:04:45.990
difficult. So, it comes as a shock that
00:04:46.000 --> 00:04:48.230
a massive star basically disappeared
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without an explosion and nobody noticed
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it for more than 5 years. It impacts
00:04:53.120 --> 00:04:55.350
science's entire understanding of the
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inventory of massive stellar deaths in
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the universe. And it says there are
00:05:00.080 --> 00:05:02.070
things that may be quietly happening out
00:05:02.080 --> 00:05:05.430
there that are easily going unnoticed.
00:05:05.440 --> 00:05:07.670
This is spaceime.
00:05:07.680 --> 00:05:10.390
Still to come, NASA trails a new Martian
00:05:10.400 --> 00:05:12.790
navigation system on the red planet. And
00:05:12.800 --> 00:05:14.550
a new crew arrives aboard the
00:05:14.560 --> 00:05:16.870
International Space Station as NASA
00:05:16.880 --> 00:05:19.670
approves a sixth private mission to the
00:05:19.680 --> 00:05:21.909
orbiting outpost. All that and more
00:05:21.919 --> 00:05:29.430
still to come on Spaceime.
00:05:29.440 --> 00:05:31.189
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And remember, you'll find the links in
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our show notes,
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squarespace.com/spacetime,
00:06:38.479 --> 00:06:41.670
and the promo code spaceime. NASA has
00:06:41.680 --> 00:06:43.350
developed a new Martian navigation
00:06:43.360 --> 00:06:45.430
system, allowing its Mars Perseverance
00:06:45.440 --> 00:06:47.830
rover to pinpoint its location to within
00:06:47.840 --> 00:06:50.150
25 cm.
00:06:50.160 --> 00:06:52.309
Imagine you're all alone, driving along
00:06:52.319 --> 00:06:54.469
a rocky, unforgiving desert with no
00:06:54.479 --> 00:06:57.670
roads, no map, no GPS, and nothing more
00:06:57.680 --> 00:06:59.909
than a single phone call once a day for
00:06:59.919 --> 00:07:01.990
someone far away telling you where you
00:07:02.000 --> 00:07:05.029
are. Well, that's what the car size six
00:07:05.039 --> 00:07:06.550
wheel Perseverance rover has been
00:07:06.560 --> 00:07:08.550
experiencing ever since landing on the
00:07:08.560 --> 00:07:10.870
red planet almost exactly 5 years ago
00:07:10.880 --> 00:07:13.510
this month. Although it carries time-t
00:07:13.520 --> 00:07:15.589
tested tools for determining its general
00:07:15.599 --> 00:07:17.350
location, the rover has always needed
00:07:17.360 --> 00:07:19.270
mission managers back on Earth to tell
00:07:19.280 --> 00:07:22.230
it precisely where it is until now. A
00:07:22.240 --> 00:07:24.070
new technology developed by NASA's Jet
00:07:24.080 --> 00:07:25.909
Propulsion Laboratory in Pasadena,
00:07:25.919 --> 00:07:27.990
California will now allow Perseverance
00:07:28.000 --> 00:07:29.830
to figure out its whereabouts without
00:07:29.840 --> 00:07:32.230
needing to phone home for help. called
00:07:32.240 --> 00:07:34.950
Mars Global Localization. The technology
00:07:34.960 --> 00:07:36.870
features an algorithm that rapidly
00:07:36.880 --> 00:07:38.870
compares panoramic images from the
00:07:38.880 --> 00:07:41.270
rover's navigation cameras with onboard
00:07:41.280 --> 00:07:43.749
orbital terrain maps. Running on a
00:07:43.759 --> 00:07:45.589
powerful processor that Perseverance
00:07:45.599 --> 00:07:47.430
originally used to communicate with the
00:07:47.440 --> 00:07:49.830
Ingenuity Mars helicopter. The algorithm
00:07:49.840 --> 00:07:51.749
takes about 2 minutes to pinpoint the
00:07:51.759 --> 00:07:55.430
rover's location within 25 cm.
00:07:55.440 --> 00:07:57.430
Mission managers first used the Mars
00:07:57.440 --> 00:07:59.510
Global Localization Technology in
00:07:59.520 --> 00:08:01.270
successful mission operations on
00:08:01.280 --> 00:08:03.510
February the 2nd, then again on February
00:08:03.520 --> 00:08:06.710
the 16th. JPL's chief engineer of
00:08:06.720 --> 00:08:08.950
robotics operations, Vandy Vuma, says
00:08:08.960 --> 00:08:12.150
it's kind of like giving the rover GPS.
00:08:12.160 --> 00:08:13.749
It means Perseverance will be able to
00:08:13.759 --> 00:08:15.270
drive for much longer distances
00:08:15.280 --> 00:08:17.270
autonomously, thereby allowing more of
00:08:17.280 --> 00:08:18.869
the planet to be explored and more
00:08:18.879 --> 00:08:21.189
science to be gathered. The upgrades
00:08:21.199 --> 00:08:23.029
especially valuable given how well
00:08:23.039 --> 00:08:24.950
Perseverance's auto navigation
00:08:24.960 --> 00:08:27.510
self-driving systems been working.
00:08:27.520 --> 00:08:30.150
AutoNav enables the rover to replan its
00:08:30.160 --> 00:08:32.310
path around obstacles along its way in
00:08:32.320 --> 00:08:33.829
order to reach its pre-established
00:08:33.839 --> 00:08:36.310
destination. It's already proven so
00:08:36.320 --> 00:08:38.070
capable that the distance Perseverance
00:08:38.080 --> 00:08:39.750
can drive without instructions from
00:08:39.760 --> 00:08:42.070
Earth is largely now only limited by the
00:08:42.080 --> 00:08:43.909
rover's uncertainty about its exact
00:08:43.919 --> 00:08:46.550
location. The implementation of Mars
00:08:46.560 --> 00:08:48.710
global localization comes on the heels
00:08:48.720 --> 00:08:50.710
of another innovation from Perseverance
00:08:50.720 --> 00:08:52.790
mission managers. That is the first use
00:08:52.800 --> 00:08:55.110
of generative artificial intelligence to
00:08:55.120 --> 00:08:57.269
help plan a drive route by selecting way
00:08:57.279 --> 00:08:58.790
points for the rover which are normally
00:08:58.800 --> 00:09:01.829
chosen by human rover operators. Unlike
00:09:01.839 --> 00:09:04.389
on Earth, there are no GPS satellites in
00:09:04.399 --> 00:09:06.550
deep space to locate spacecraft on
00:09:06.560 --> 00:09:09.509
planetary surfaces. So missions whether
00:09:09.519 --> 00:09:11.269
robotic or manned need to come up with
00:09:11.279 --> 00:09:13.670
other ways to determine their location.
00:09:13.680 --> 00:09:15.430
Now, as with NASA's previous Mars
00:09:15.440 --> 00:09:17.590
rovers, Perseverance tracks its position
00:09:17.600 --> 00:09:19.750
using what's called visual odometry,
00:09:19.760 --> 00:09:21.670
analyzing geological features in camera
00:09:21.680 --> 00:09:23.750
images taken every few meters while
00:09:23.760 --> 00:09:26.470
accounting for wheel slippage. But as
00:09:26.480 --> 00:09:28.870
tiny errors in this process add up over
00:09:28.880 --> 00:09:30.630
the course of each drive, the rover
00:09:30.640 --> 00:09:32.470
becomes increasingly unsure about its
00:09:32.480 --> 00:09:35.110
exact location. Now, on long drives,
00:09:35.120 --> 00:09:36.710
that means the rover's sense of its
00:09:36.720 --> 00:09:39.670
position could be up by as much as 35 m.
00:09:39.680 --> 00:09:41.350
believing it may be too close to
00:09:41.360 --> 00:09:43.269
hazardous terrain, Perseverance then
00:09:43.279 --> 00:09:45.590
prematurely may end its drive and wait
00:09:45.600 --> 00:09:48.310
for fresh instructions from Earth. Verma
00:09:48.320 --> 00:09:50.310
says under those circumstances, people
00:09:50.320 --> 00:09:52.070
have to tell it, "You're not lost.
00:09:52.080 --> 00:09:54.550
You're safe. Keep going." Scientists
00:09:54.560 --> 00:09:55.990
knew that if they could address this
00:09:56.000 --> 00:09:57.670
problem, the rover could travel much
00:09:57.680 --> 00:10:00.389
further every day. After each drive
00:10:00.399 --> 00:10:03.190
comes to a halt, the rover sends a 360°
00:10:03.200 --> 00:10:05.509
panorama to Earth, where mapping experts
00:10:05.519 --> 00:10:07.350
match the imagery with shots of the
00:10:07.360 --> 00:10:09.509
Martian surface taken by NASA's Mars
00:10:09.519 --> 00:10:11.750
Reconnaissance Orbiter spacecraft.
00:10:11.760 --> 00:10:13.910
Mission managers then send the rover its
00:10:13.920 --> 00:10:15.990
location and instructions what to do
00:10:16.000 --> 00:10:18.710
next. Now, that process can take a day
00:10:18.720 --> 00:10:20.870
or more, but with the new Mars global
00:10:20.880 --> 00:10:22.790
localization technology, the rover is
00:10:22.800 --> 00:10:24.870
now able to compare images itself,
00:10:24.880 --> 00:10:27.030
determine its exact location, and roll
00:10:27.040 --> 00:10:30.150
ahead on its pre-planned route.
00:10:30.160 --> 00:10:32.630
Key to Mars global localization is the
00:10:32.640 --> 00:10:34.790
rover's helicopter base station, which
00:10:34.800 --> 00:10:36.630
Perseverance used to communicate with
00:10:36.640 --> 00:10:38.630
the now retired Ingenuity Mars
00:10:38.640 --> 00:10:40.630
helicopter. Equipped with an
00:10:40.640 --> 00:10:42.710
off-the-shelf commercial processor of
00:10:42.720 --> 00:10:44.710
the type fitted to mid2010 era
00:10:44.720 --> 00:10:46.870
smartphones, the technology can run over
00:10:46.880 --> 00:10:48.790
100 times faster than the robot's two
00:10:48.800 --> 00:10:50.550
main computers, which was specially
00:10:50.560 --> 00:10:52.550
developed to survive the radiationheavy
00:10:52.560 --> 00:10:54.310
Martian environment and are based on
00:10:54.320 --> 00:10:57.509
hardware introduced back in 1997.
00:10:57.519 --> 00:10:59.509
As a technology demonstration designed
00:10:59.519 --> 00:11:01.590
to test capabilities, the Ingenuity
00:11:01.600 --> 00:11:03.590
mission was able to risk employing more
00:11:03.600 --> 00:11:04.949
powerful commercial chips in the
00:11:04.959 --> 00:11:06.710
helicopter base station and on the
00:11:06.720 --> 00:11:08.550
rotocopter itself, even though they
00:11:08.560 --> 00:11:09.990
hadn't been proven in the space
00:11:10.000 --> 00:11:12.150
environment. It was a gamble, but it
00:11:12.160 --> 00:11:15.030
paid off with Ingenuity undertaking 72
00:11:15.040 --> 00:11:16.710
flights compared to the five test
00:11:16.720 --> 00:11:18.310
flights it was originally planned to
00:11:18.320 --> 00:11:20.790
undertake. Now, apart from the Mars
00:11:20.800 --> 00:11:22.790
Perseverance rover, this new technology
00:11:22.800 --> 00:11:24.630
could also find its way onto the moon,
00:11:24.640 --> 00:11:26.710
where lighting conditions and long, cold
00:11:26.720 --> 00:11:29.030
lunar nights make knowing exactly where
00:11:29.040 --> 00:11:31.269
a spacecraft's located all the more
00:11:31.279 --> 00:11:34.949
crucial. This report from NASA TV.
00:11:34.959 --> 00:11:37.190
>> Using a new technology called Mars
00:11:37.200 --> 00:11:39.750
Global Localization, the rover can now
00:11:39.760 --> 00:11:41.910
pinpoint its location without asking
00:11:41.920 --> 00:11:44.630
humans for help. Here's how it works.
00:11:44.640 --> 00:11:47.110
Perseverance takes panoramic images and
00:11:47.120 --> 00:11:49.910
turns it into a bird's eye view. Then an
00:11:49.920 --> 00:11:52.389
onboard algorithm rapidly compares those
00:11:52.399 --> 00:11:54.630
images to terrain maps from an orbiting
00:11:54.640 --> 00:11:56.870
spacecraft and determines the rover's
00:11:56.880 --> 00:11:59.590
precise location. The key to this quick
00:11:59.600 --> 00:12:01.829
computing is a processor Perseverance
00:12:01.839 --> 00:12:03.670
originally used to communicate with the
00:12:03.680 --> 00:12:06.870
Ingenuity Mars helicopter. Now it's
00:12:06.880 --> 00:12:08.629
helping Perseverance keep moving
00:12:08.639 --> 00:12:10.790
confidently. And global localization
00:12:10.800 --> 00:12:13.030
isn't the only recent innovation. The
00:12:13.040 --> 00:12:15.350
team has started to use generative AI to
00:12:15.360 --> 00:12:17.430
help plan the rover's driving path by
00:12:17.440 --> 00:12:19.350
creating way points for Mars. By
00:12:19.360 --> 00:12:21.430
leveraging decades of Mars knowledge and
00:12:21.440 --> 00:12:23.350
the latest advancements in technology,
00:12:23.360 --> 00:12:25.269
the rover will be able to drive for much
00:12:25.279 --> 00:12:27.509
longer distances autonomously. So, we'll
00:12:27.519 --> 00:12:29.750
explore more of the planet and get more
00:12:29.760 --> 00:12:30.550
science.
00:12:30.560 --> 00:12:33.509
>> This is space time. Still to come,
00:12:33.519 --> 00:12:36.069
NASA's SpaceX Crew 12 arrives aboard the
00:12:36.079 --> 00:12:37.670
International Space Station as the
00:12:37.680 --> 00:12:39.910
agency approves a new private mission,
00:12:39.920 --> 00:12:42.310
the sixth, to the orbiting outpost. And
00:12:42.320 --> 00:12:44.790
later in the science report, a new study
00:12:44.800 --> 00:12:47.110
warns that over fishing may be one of
00:12:47.120 --> 00:12:49.269
the key reasons for reef munching crown
00:12:49.279 --> 00:12:51.350
of thorn starfish outbreaks on the Great
00:12:51.360 --> 00:12:53.829
Barrier Reef. All that and more still to
00:12:53.839 --> 00:13:11.030
come on Spaceime.
00:13:11.040 --> 00:13:13.750
NASA's SpaceX Crew 12 Dragon capsule is
00:13:13.760 --> 00:13:14.790
successfully docked with the
00:13:14.800 --> 00:13:16.550
International Space Station, returning
00:13:16.560 --> 00:13:18.550
the orbiting outpost compliment back up
00:13:18.560 --> 00:13:21.509
to its usual seven crew members. The
00:13:21.519 --> 00:13:23.670
crew of two Americans, a Russian and a
00:13:23.680 --> 00:13:25.430
Frenchman, blasted off a day earlier
00:13:25.440 --> 00:13:27.590
aboard a Falcon 9 rocket from Space
00:13:27.600 --> 00:13:29.750
Launch Complex 40 at the Cape Canaveral
00:13:29.760 --> 00:13:32.389
Space Force Base in Florida. The Dragon
00:13:32.399 --> 00:13:34.470
spacecraft freedom, docked autonomously
00:13:34.480 --> 00:13:36.629
with the space-facing zenith port of the
00:13:36.639 --> 00:13:39.509
station's Harmony module. Crew 12 will
00:13:39.519 --> 00:13:42.470
now form part of the expedition 7475
00:13:42.480 --> 00:13:45.190
crew undertaking some 250 scientific
00:13:45.200 --> 00:13:47.590
experiments in orbit. These will include
00:13:47.600 --> 00:13:49.829
studying pneumonia causing bacteria to
00:13:49.839 --> 00:13:51.910
improve cardiovascular treatments, on
00:13:51.920 --> 00:13:54.230
demand intravenous fluid generation for
00:13:54.240 --> 00:13:56.470
future space missions, and research into
00:13:56.480 --> 00:13:58.550
how physical characteristics may affect
00:13:58.560 --> 00:14:00.870
blood flow during long duration space
00:14:00.880 --> 00:14:02.870
flight. Other experiments include
00:14:02.880 --> 00:14:04.949
automated plant health monitoring and
00:14:04.959 --> 00:14:07.110
investigating plant and nitrogen fixing
00:14:07.120 --> 00:14:09.110
microbe interactions to enhance food
00:14:09.120 --> 00:14:11.509
production in space. The International
00:14:11.519 --> 00:14:13.350
Space Station's been under man for about
00:14:13.360 --> 00:14:15.110
a month following the early return to
00:14:15.120 --> 00:14:17.509
Earth of NASA's SpaceX Crew 11 mission
00:14:17.519 --> 00:14:19.670
due to a medical emergency involving one
00:14:19.680 --> 00:14:21.670
of the astronauts.
00:14:21.680 --> 00:14:23.670
Meanwhile, NASA's just approved a new
00:14:23.680 --> 00:14:25.269
private astronaut mission to the
00:14:25.279 --> 00:14:27.269
International Space Station slated for
00:14:27.279 --> 00:14:30.230
later next year. The 14-day mission for
00:14:30.240 --> 00:14:32.550
the company Vast will undertake research
00:14:32.560 --> 00:14:34.550
designed to gain new insights into the
00:14:34.560 --> 00:14:36.629
infrastructure and processes that'll be
00:14:36.639 --> 00:14:38.550
needed to support Vast's own human
00:14:38.560 --> 00:14:40.310
spaceflight missions, which include
00:14:40.320 --> 00:14:41.990
building their own space station in low
00:14:42.000 --> 00:14:45.110
Earth orbit called Haven in 2027.
00:14:45.120 --> 00:14:46.870
Plans suggest Haven will be about the
00:14:46.880 --> 00:14:48.949
size of a truck with additional modules
00:14:48.959 --> 00:14:51.030
added in future years with the outpost
00:14:51.040 --> 00:14:53.910
becoming permanently manned by 2030.
00:14:53.920 --> 00:14:56.069
Vest's looking at research proposals on
00:14:56.079 --> 00:14:58.230
biology, biotechnology, physical
00:14:58.240 --> 00:15:00.470
sciences, human research, and technology
00:15:00.480 --> 00:15:03.430
demonstrations. Vast used SpaceX to
00:15:03.440 --> 00:15:05.590
launch the small haven demo spacecraft
00:15:05.600 --> 00:15:08.550
into orbit last year. The other big
00:15:08.560 --> 00:15:10.069
private company that's been flying
00:15:10.079 --> 00:15:11.350
people into space and to the
00:15:11.360 --> 00:15:13.509
International Space Station is Axiom,
00:15:13.519 --> 00:15:15.189
which has undertaken four missions to
00:15:15.199 --> 00:15:17.269
the orbiting outpost. As well as
00:15:17.279 --> 00:15:19.430
developing NASA's Arteimus space suits,
00:15:19.440 --> 00:15:21.350
Axiom Space is also developing their own
00:15:21.360 --> 00:15:23.829
commercial space station. Its initial
00:15:23.839 --> 00:15:25.509
modules will be attached to the existing
00:15:25.519 --> 00:15:27.269
international space station before
00:15:27.279 --> 00:15:29.030
becoming an independent free-flying
00:15:29.040 --> 00:15:30.870
platform when the international space
00:15:30.880 --> 00:15:34.230
stations retire in 2030. Axiom plan to
00:15:34.240 --> 00:15:35.910
use their space station to undertake
00:15:35.920 --> 00:15:37.750
microgravity research, various
00:15:37.760 --> 00:15:41.110
commercial endeavors, and space tourism.
00:15:41.120 --> 00:15:58.310
This is spaceime.
00:15:58.320 --> 00:16:00.150
And time out to take another brief look
00:16:00.160 --> 00:16:01.670
at some of the other stories making news
00:16:01.680 --> 00:16:03.509
in science this week with a science
00:16:03.519 --> 00:16:06.230
report. A new study warns that people
00:16:06.240 --> 00:16:08.150
are exposed to more air pollution are
00:16:08.160 --> 00:16:10.230
also far more likely to face a higher
00:16:10.240 --> 00:16:12.710
risk of developing Alzheimer's disease.
00:16:12.720 --> 00:16:14.310
The findings reported in the journal
00:16:14.320 --> 00:16:16.230
Plus Medicine looked at how much air
00:16:16.240 --> 00:16:19.269
pollution some 27.8 million people aged
00:16:19.279 --> 00:16:21.749
65 and over were exposed to over an
00:16:21.759 --> 00:16:24.389
18-year period. They found that people
00:16:24.399 --> 00:16:25.829
who had a greater exposure to air
00:16:25.839 --> 00:16:27.829
pollution were also far more likely to
00:16:27.839 --> 00:16:29.509
develop Alzheimer's than those who
00:16:29.519 --> 00:16:31.910
avoided air pollution. And the authors
00:16:31.920 --> 00:16:33.910
found the link was also stronger for
00:16:33.920 --> 00:16:36.069
people who had experienced a stroke.
00:16:36.079 --> 00:16:37.990
However, they found no additional effect
00:16:38.000 --> 00:16:40.230
in people with high blood pressure or
00:16:40.240 --> 00:16:42.710
with depression.
00:16:42.720 --> 00:16:44.710
Marine biologists are warning that over
00:16:44.720 --> 00:16:46.949
fishing may be the primary cause of reef
00:16:46.959 --> 00:16:49.670
munching crownthorn starfish outbreaks.
00:16:49.680 --> 00:16:51.269
The findings reported in the journal
00:16:51.279 --> 00:16:53.509
current biology found a reduction in the
00:16:53.519 --> 00:16:55.350
number of predatory fish due to over
00:16:55.360 --> 00:16:57.350
fishing is causing a population
00:16:57.360 --> 00:16:59.910
explosion in the carnivorous starfish.
00:16:59.920 --> 00:17:01.910
The authors compared various areas of
00:17:01.920 --> 00:17:03.670
the great barrier reef that have either
00:17:03.680 --> 00:17:05.909
banned fishing, have limited it, or have
00:17:05.919 --> 00:17:08.309
no restrictions on it. They found in
00:17:08.319 --> 00:17:10.150
areas that banned fishing, there was a
00:17:10.160 --> 00:17:13.029
2.8 8 to 3.6 times higher chance of
00:17:13.039 --> 00:17:15.350
crown of thorns being eaten by predatory
00:17:15.360 --> 00:17:18.069
fish. The authors say the elevated risk
00:17:18.079 --> 00:17:20.150
of the spiny critters in no fishing
00:17:20.160 --> 00:17:22.470
reserves is directly attributable to a
00:17:22.480 --> 00:17:24.710
single species of snapper known as the
00:17:24.720 --> 00:17:27.029
Spangot Emperor, which has some 6.3
00:17:27.039 --> 00:17:29.190
times greater biomass in no fishing
00:17:29.200 --> 00:17:31.430
areas versus those areas where fishing
00:17:31.440 --> 00:17:33.750
is allowed.
00:17:33.760 --> 00:17:35.909
Scientists say glass could be the future
00:17:35.919 --> 00:17:38.310
of long-term data storage for human
00:17:38.320 --> 00:17:40.630
knowledge and recordkeeping. Current
00:17:40.640 --> 00:17:42.549
data preservation techniques such as
00:17:42.559 --> 00:17:44.870
tapes and hard drives tend to degrade
00:17:44.880 --> 00:17:47.110
within a few years or decades and are
00:17:47.120 --> 00:17:49.110
therefore unreliable for long-term
00:17:49.120 --> 00:17:51.830
storage. However, by using lasers to
00:17:51.840 --> 00:17:53.909
encode data onto glass, data could
00:17:53.919 --> 00:17:55.830
withstand moisture, temperature changes,
00:17:55.840 --> 00:17:57.669
and electromagnetic interference for
00:17:57.679 --> 00:17:59.830
centuries. A report in the journal
00:17:59.840 --> 00:18:02.390
Nature claims the system can store 4.8 8
00:18:02.400 --> 00:18:05.190
terabt of data in a 12x 12 cm glass
00:18:05.200 --> 00:18:07.590
sheet with a shelf life of up to 10,000
00:18:07.600 --> 00:18:09.510
years even if stored at high
00:18:09.520 --> 00:18:11.669
temperatures.
00:18:11.679 --> 00:18:13.190
Google have finally launched the new
00:18:13.200 --> 00:18:15.750
Pixel 10a smartphone which one must
00:18:15.760 --> 00:18:17.830
admit is strikingly similar to the
00:18:17.840 --> 00:18:20.549
earlier Pixel 9a. With the details,
00:18:20.559 --> 00:18:22.789
we're joined by technology editor Alex
00:18:22.799 --> 00:18:24.870
Royo from Techadvice St.Life.
00:18:24.880 --> 00:18:27.029
>> Yeah, this is the Pixel 10A. So, this is
00:18:27.039 --> 00:18:29.909
the lower cost version of Google's Pixel
00:18:29.919 --> 00:18:31.669
phones. They normally have the the
00:18:31.679 --> 00:18:34.070
regular Pixel 10 and the the 10 Pro and
00:18:34.080 --> 00:18:35.990
also the 10 Pro XL which is a larger
00:18:36.000 --> 00:18:38.150
version. And then around about this time
00:18:38.160 --> 00:18:40.070
every year, they launch the A version
00:18:40.080 --> 00:18:41.909
which is their more affordable version.
00:18:41.919 --> 00:18:44.390
So this one is $849 Australian,
00:18:44.400 --> 00:18:46.310
obviously less in US dollars, but it
00:18:46.320 --> 00:18:48.390
competes against all those phones that
00:18:48.400 --> 00:18:51.029
are $500 or less, which generally are
00:18:51.039 --> 00:18:53.270
not terribly great phones. I mean that
00:18:53.280 --> 00:18:54.390
look, they'll do what you want them to
00:18:54.400 --> 00:18:55.590
do. They'll do maps, they'll do
00:18:55.600 --> 00:18:56.870
messaging, they'll do various things.
00:18:56.880 --> 00:18:58.310
But if you try and push them with games
00:18:58.320 --> 00:19:00.150
or just try and I don't know do lots of
00:19:00.160 --> 00:19:01.669
video editing or whatever it might be,
00:19:01.679 --> 00:19:03.750
they're clearly not going to be as
00:19:03.760 --> 00:19:06.470
performant as the uh the major devices.
00:19:06.480 --> 00:19:08.150
And that's where the Pixel 10a and also
00:19:08.160 --> 00:19:10.710
the iPhone 16 and the forthcoming 710A,
00:19:10.720 --> 00:19:11.990
which we'll talk about in a moment, come
00:19:12.000 --> 00:19:13.990
in as almost flagship phones under
00:19:14.000 --> 00:19:16.390
$1,000. Now, the one thing that is
00:19:16.400 --> 00:19:18.310
interesting this year is that whilst the
00:19:18.320 --> 00:19:21.350
10 and 10 Pro have the Tensor G5 chip,
00:19:21.360 --> 00:19:23.430
the 1080 this year does not. It has the
00:19:23.440 --> 00:19:25.270
G4 which is a bit unusual because
00:19:25.280 --> 00:19:26.950
normally you know you you would be
00:19:26.960 --> 00:19:28.470
putting the latest chip but clearly in
00:19:28.480 --> 00:19:31.669
an era where memory storage and even the
00:19:31.679 --> 00:19:33.430
space to make processes or more
00:19:33.440 --> 00:19:35.270
expensive processes on production lines
00:19:35.280 --> 00:19:37.830
is heavily impacted by all of the GPUs
00:19:37.840 --> 00:19:40.630
and uh AI in data centers most of which
00:19:40.640 --> 00:19:41.990
actually hasn't been built yet. It's
00:19:42.000 --> 00:19:43.510
sort of been pre-ordered to fulfill
00:19:43.520 --> 00:19:45.029
demand that it's theoretically supposed
00:19:45.039 --> 00:19:45.590
to be there.
00:19:45.600 --> 00:19:47.510
>> There's finally a date for the Apple
00:19:47.520 --> 00:19:48.070
premiere.
00:19:48.080 --> 00:19:50.230
>> Yeah. So this is March 4th in New York.
00:19:50.240 --> 00:19:52.070
They'll also be holding events within
00:19:52.080 --> 00:19:53.669
Singapore and London. This is where
00:19:53.679 --> 00:19:56.549
we're meant to hear about iPhones 17e
00:19:56.559 --> 00:19:58.549
which in theory will have the same chip
00:19:58.559 --> 00:20:00.150
that is in the iPhone 17 range but
00:20:00.160 --> 00:20:02.070
normally there's one core less for some
00:20:02.080 --> 00:20:03.990
reason. It's like a bind chip one of the
00:20:04.000 --> 00:20:05.350
graphics cores or one of one of the
00:20:05.360 --> 00:20:08.070
cores is not there. So it enables Apple
00:20:08.080 --> 00:20:09.669
to use these chips which still have
00:20:09.679 --> 00:20:11.350
great power but in their cheapest device
00:20:11.360 --> 00:20:14.070
$999 in Australia is what the 16 sells
00:20:14.080 --> 00:20:15.590
for. I expect the price will be the
00:20:15.600 --> 00:20:17.590
same. But more importantly, we are
00:20:17.600 --> 00:20:20.310
expecting to also see the new MacBook.
00:20:20.320 --> 00:20:22.710
Supposedly 12 in screen, so small. I
00:20:22.720 --> 00:20:24.310
mean, I've heard people say 13 in, but
00:20:24.320 --> 00:20:26.789
effectively this will sell presumably in
00:20:26.799 --> 00:20:29.270
the US for about $599. We're yet to find
00:20:29.280 --> 00:20:31.270
out. Supposedly, it only has 8 gig of
00:20:31.280 --> 00:20:33.270
RAM instead of 16, which you would think
00:20:33.280 --> 00:20:35.190
is not as enough as you would have on
00:20:35.200 --> 00:20:37.110
the 16 gig devices that can better run
00:20:37.120 --> 00:20:38.630
Apple intelligence, although we're still
00:20:38.640 --> 00:20:40.310
waiting for the next generation of Siri.
00:20:40.320 --> 00:20:42.310
But this will be a lowc cost Mac running
00:20:42.320 --> 00:20:45.190
an iPhone chip with iPhone chips very
00:20:45.200 --> 00:20:47.190
powerful. I mean uh the latest chips are
00:20:47.200 --> 00:20:49.110
as good as the or better than the M1
00:20:49.120 --> 00:20:51.510
from 5 years ago. And uh that's still a
00:20:51.520 --> 00:20:53.110
great computer. I have an M1 with 8 gig
00:20:53.120 --> 00:20:55.430
of RAM and a 512 gig SSD and it's
00:20:55.440 --> 00:20:57.830
running everything that my M2 with 24
00:20:57.840 --> 00:21:00.630
ter GB of RAM and a 1 TB SSD can run.
00:21:00.640 --> 00:21:03.190
So, if Apple does that, it will mean
00:21:03.200 --> 00:21:05.270
greater competition for the school
00:21:05.280 --> 00:21:07.029
dollar where you've got Chromebooks and
00:21:07.039 --> 00:21:08.710
you've got iPads and tablets and but
00:21:08.720 --> 00:21:10.710
it'll also give people a cheaper Mac to
00:21:10.720 --> 00:21:13.029
to go for and then they once they start
00:21:13.039 --> 00:21:15.029
using it, they can aspire to better. But
00:21:15.039 --> 00:21:17.110
it will be certainly better than any
00:21:17.120 --> 00:21:19.990
Windows PC that is in the $500,000
00:21:20.000 --> 00:21:21.510
market. It'll just be a vastly better
00:21:21.520 --> 00:21:23.270
device with all the advantages of the
00:21:23.280 --> 00:21:23.669
Macs.
00:21:23.679 --> 00:21:25.029
>> Price of hard drives are going up. the
00:21:25.039 --> 00:21:26.230
cost of these things are going up and
00:21:26.240 --> 00:21:28.070
Western Digital has reported or it's
00:21:28.080 --> 00:21:29.510
been reported online that it has sold
00:21:29.520 --> 00:21:32.870
its entire 2026 allocation of discs to
00:21:32.880 --> 00:21:35.190
data centers. I mean I presume this you
00:21:35.200 --> 00:21:36.950
know still obviously discs in the
00:21:36.960 --> 00:21:39.750
channel uh for consumers but it sold its
00:21:39.760 --> 00:21:41.909
entire 2026 contingent and apparently it
00:21:41.919 --> 00:21:44.230
sold part of its 2027 and 2028
00:21:44.240 --> 00:21:46.470
contingent as well. So the need for
00:21:46.480 --> 00:21:49.110
hardware and electricity to power it is
00:21:49.120 --> 00:21:50.789
paramount. If uh anything's going to
00:21:50.799 --> 00:21:52.390
slow down the revolution, it's going to
00:21:52.400 --> 00:21:54.310
be not having enough of these drives and
00:21:54.320 --> 00:21:56.549
memory and and other GPUs components.
00:21:56.559 --> 00:21:58.390
But I guess the companies buying them up
00:21:58.400 --> 00:22:00.470
in in such volume, making sure that you
00:22:00.480 --> 00:22:02.390
know the data center guys will be okay.
00:22:02.400 --> 00:22:03.909
But it's consumers and businesses that
00:22:03.919 --> 00:22:05.430
will suffer with higher prices.
00:22:05.440 --> 00:22:09.110
>> That's Alex Haravo from techadvice.life
00:22:09.120 --> 00:22:26.070
and this is spacetime.
00:22:26.080 --> 00:22:28.950
and that's the show for now. Spacetime
00:22:28.960 --> 00:22:30.710
is available every Monday, Wednesday,
00:22:30.720 --> 00:22:33.029
and Friday through bites.com,
00:22:33.039 --> 00:22:35.270
Soundcloud, YouTube, your favorite
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spacetime withstartgary.com.
00:22:40.320 --> 00:22:42.149
Spacetime's also broadcast through the
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National Science Foundation on Science
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Zone Radio and on both iHeart Radio and
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TuneIn Radio. And you can help to
00:22:49.280 --> 00:22:50.870
support our show by visiting the
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promotional merchandising goodies, or by
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becoming a Spacetime patron, which gives
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you access to triple episode commercial
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spaceimewithstugarry.com
00:23:10.720 --> 00:23:12.630
for full details.
00:23:12.640 --> 00:23:14.470
>> You've been listening to Spacetime with
00:23:14.480 --> 00:23:16.789
Stuart Garry. This has been another
00:23:16.799 --> 00:23:18.549
quality podcast production from
00:23:18.559 --> 00:23:21.559
byes.com.




