April 5, 2025

Military Launch Contracts Unveiled, Historic Polar Spaceflight Ends

Military Launch Contracts Unveiled, Historic Polar Spaceflight Ends
The player is loading ...
Military Launch Contracts Unveiled, Historic Polar Spaceflight Ends

Astronomy Daily | Space News: S04E82

In this episode of Astronomy Daily, host Anna takes you on an exhilarating journey through the latest developments in the ever-evolving world of space exploration. From groundbreaking military contracts to the thrilling adventures of space tourists, this episode is packed with cosmic insights that will ignite your curiosity about the universe.

Highlights:

- Historic Military Launch Contracts: Discover how SpaceX, ULA, and Blue Origin are sharing a monumental $13.5 billion in military launch contracts, marking a significant shift in national security space access. We delve into the implications of this landmark decision and how it reshapes the landscape of military space operations.

- Polar Orbit Space Tourism: Follow the incredible journey of four space tourists who completed a historic flight circling the globe above both poles. Experience their breathtaking views and learn about the scientific experiments they conducted during their groundbreaking mission aboard a SpaceX Dragon capsule.

- Life Aboard the International Space Station: Get an inside look at the bustling activities aboard the ISS, where astronauts are conducting cutting-edge robotics experiments and crucial medical research. We discuss the innovative projects that are paving the way for future space missions and maintaining the station's life support systems.

- Stellar Seismology Breakthrough: Dive into the fascinating new method scientists are using to study stars through their vibrations. Learn how stellar quakes provide insights into a star's inner workings and how this research is reshaping our understanding of stellar evolution.

- Discovery of Big Wheel Galaxy: Marvel at the James Webb Space Telescope's discovery of the colossal spiral galaxy, Big Wheel, which challenges our understanding of galactic evolution. We explore its remarkable characteristics and the implications for current cosmological models.

For more cosmic updates, visit our website at astronomydaily.io (http://www.astronomydaily.io/) . Join our community on social media by searching for #AstroDailyPod on Facebook, X, YouTubeMusic, TikTok, and our new Instagram account! Don’t forget to subscribe to the podcast on Apple Podcasts, Spotify, iHeartRadio, or wherever you get your podcasts.

Thank you for tuning in. This is Anna signing off. Until next time, keep looking up and stay curious about the wonders of our universe.

00:00 - Welcome to Astronomy Daily

01:05 - Military launch contracts overview

10:30 - Polar orbit space tourism mission

17:00 - ISS crew activities and research

22:15 - Stellar seismology discoveries

27:30 - Big Wheel galaxy discovery

✍️ Episode References

Military Launch Contracts

[Department of Defense]( https://www.defense.gov/ (https://www.defense.gov/) )

SpaceX Dragon Mission Details

[SpaceX]( https://www.spacex.com (https://www.spacex.com/) )

International Space Station Research

[NASA]( https://www.nasa.gov (https://www.nasa.gov/) )

Stellar Seismology Research

[University of New South Wales]( https://www.unsw.edu.au/ (https://www.unsw.edu.au/) )

Big Wheel Galaxy Discovery

[James Webb Space Telescope]( https://www.nasa.gov/mission_pages/webb/main/index.html (https://www.nasa.gov/mission_pages/webb/main/index.html) )

Astronomy Daily

[Astronomy Daily]( http://www.astronomydaily.io/ (http://www.astronomydaily.io/) )


Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-exciting-space-discoveries-and-news--5648921/support (https://www.spreaker.com/podcast/astronomy-daily-exciting-space-discoveries-and-news--5648921/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) .

Episode link: https://play.headliner.app/episode/26458992?utm_source=youtube

00:00 - Welcome to Astronomy Daily

01:05 - Military launch contracts overview

10:30 - Polar orbit space tourism mission

17:00 - ISS crew activities and research

WEBVTT
Kind: captions
Language: en

00:00:00.240 --> 00:00:02.310
welcome to Astronomy Daily where we


00:00:02.320 --> 00:00:04.150
bring you the latest in space and


00:00:04.160 --> 00:00:07.030
astronomy news I'm Anna and I'm thrilled


00:00:07.040 --> 00:00:08.790
to be your guide through today's cosmic


00:00:08.800 --> 00:00:11.110
journey Coming up on today's episode


00:00:11.120 --> 00:00:12.790
we'll explore some major developments


00:00:12.800 --> 00:00:14.629
spanning the entire space sector We'll


00:00:14.639 --> 00:00:18.150
look at how SpaceX ULA and Blue Origin


00:00:18.160 --> 00:00:21.510
are sharing a massive 13.5 billion in


00:00:21.520 --> 00:00:23.750
military launch contracts marking a


00:00:23.760 --> 00:00:25.830
significant shift in national security


00:00:25.840 --> 00:00:27.910
space access Then we'll follow the


00:00:27.920 --> 00:00:29.910
adventure of four space tourists who


00:00:29.920 --> 00:00:31.669
just completed a groundbreaking flight


00:00:31.679 --> 00:00:34.150
circling our planet above both poles a


00:00:34.160 --> 00:00:36.549
true first in human space flight history


00:00:36.559 --> 00:00:38.229
We'll also check in with the hardworking


00:00:38.239 --> 00:00:39.750
crew aboard the International Space


00:00:39.760 --> 00:00:41.830
Station where cutting edge robotics


00:00:41.840 --> 00:00:43.750
experiments and crucial medical research


00:00:43.760 --> 00:00:45.830
continue as they prepare to welcome new


00:00:45.840 --> 00:00:48.709
crew mates Plus we'll dive into


00:00:48.719 --> 00:00:51.190
fascinating astronomical research


00:00:51.200 --> 00:00:53.189
including how scientists are essentially


00:00:53.199 --> 00:00:54.709
listening to stars through their


00:00:54.719 --> 00:00:56.470
vibrations to understand their inner


00:00:56.480 --> 00:00:59.029
workings and a jaw-dropping discovery


00:00:59.039 --> 00:01:01.270
from the James Webb Space Telescope of


00:01:01.280 --> 00:01:03.349
an ancient galaxy that's challenging


00:01:03.359 --> 00:01:04.869
everything we thought we knew about


00:01:04.879 --> 00:01:07.670
galactic evolution So strap in as we


00:01:07.680 --> 00:01:09.990
blast off into today's cosmic news


00:01:10.000 --> 00:01:11.910
roundup


00:01:11.920 --> 00:01:13.910
The US Department of Defense has made a


00:01:13.920 --> 00:01:15.910
historic move in the space sector


00:01:15.920 --> 00:01:19.270
awarding a combined 13.7 billion in


00:01:19.280 --> 00:01:21.830
launch service contracts to SpaceX


00:01:21.840 --> 00:01:24.710
United Launch Alliance and Blue Origin


00:01:24.720 --> 00:01:26.789
This landmark decision marks the first


00:01:26.799 --> 00:01:28.510
time three companies will share


00:01:28.520 --> 00:01:30.550
responsibility for launching high


00:01:30.560 --> 00:01:32.429
priority military and intelligence


00:01:32.439 --> 00:01:35.030
payloads significantly reshaping the


00:01:35.040 --> 00:01:37.590
national security launch landscape


00:01:37.600 --> 00:01:39.670
SpaceX emerged as the leading contractor


00:01:39.680 --> 00:01:42.390
in this arrangement securing $5.9


00:01:42.400 --> 00:01:45.429
billion in anticipated awards ULA


00:01:45.439 --> 00:01:48.550
followed closely with $5.4 billion while


00:01:48.560 --> 00:01:51.910
Blue Origin secured nearly $2.4 billion


00:01:51.920 --> 00:01:54.149
Together these aerospace giants are


00:01:54.159 --> 00:01:56.950
expected to conduct 54 launches for the


00:01:56.960 --> 00:02:00.950
Pentagon between fiscal years 2025 and


00:02:00.960 --> 00:02:02.469
2029


00:02:02.479 --> 00:02:04.789
General Chance Saltzman Chief of Space


00:02:04.799 --> 00:02:07.030
Operations for the US Space Force


00:02:07.040 --> 00:02:09.109
emphasized the strategic importance of


00:02:09.119 --> 00:02:11.029
this investment calling it the


00:02:11.039 --> 00:02:13.670
foundation of both economic prosperity


00:02:13.680 --> 00:02:16.630
and national security These contracts


00:02:16.640 --> 00:02:18.470
fall under the national security space


00:02:18.480 --> 00:02:20.869
launch phase three-lane 2 procurement


00:02:20.879 --> 00:02:22.790
which focuses specifically on complex


00:02:22.800 --> 00:02:24.710
missions to high energy orbits with


00:02:24.720 --> 00:02:27.110
enhanced security requirements


00:02:27.120 --> 00:02:29.589
The distribution of these 54 projected


00:02:29.599 --> 00:02:31.270
missions reflects the current


00:02:31.280 --> 00:02:33.390
capabilities and trust placed in each


00:02:33.400 --> 00:02:36.309
provider SpaceX will carry out the lion


00:02:36.319 --> 00:02:39.750
share with 28 launches approximately 60%


00:02:39.760 --> 00:02:43.430
of the total ULA will handle 19 missions


00:02:43.440 --> 00:02:46.550
about 35% while Blue Origin is slated


00:02:46.560 --> 00:02:49.830
for seven launches Interestingly Blue


00:02:49.840 --> 00:02:51.750
Origin's assignments are contingent on


00:02:51.760 --> 00:02:54.070
certification of its new Glenn rocket


00:02:54.080 --> 00:02:56.550
which has flown just once so far This


00:02:56.560 --> 00:02:58.309
three provider approach represents a


00:02:58.319 --> 00:03:00.110
significant shift in the Pentagon


00:03:00.120 --> 00:03:02.550
strategy The inclusion of Blue Origin


00:03:02.560 --> 00:03:04.470
introduces more competition into a


00:03:04.480 --> 00:03:06.630
market that SpaceX has dominated since


00:03:06.640 --> 00:03:09.509
the previous round of contracts in 2020


00:03:09.519 --> 00:03:11.190
Despite New Glenn not yet being


00:03:11.200 --> 00:03:13.589
certified for national security missions


00:03:13.599 --> 00:03:15.190
Space Force officials have expressed


00:03:15.200 --> 00:03:16.869
confidence that the rocket will be ready


00:03:16.879 --> 00:03:19.070
by the time Blue Origins assignments


00:03:19.080 --> 00:03:21.910
begin The phase 3 acquisition strategy


00:03:21.920 --> 00:03:23.990
employs a dual lane approach to ensure


00:03:24.000 --> 00:03:26.790
diversification Lane one targets less


00:03:26.800 --> 00:03:29.030
riskaverse commercial-like missions


00:03:29.040 --> 00:03:31.110
while lane two focuses on highstakes


00:03:31.120 --> 00:03:32.949
missions demanding elevated performance


00:03:32.959 --> 00:03:35.470
and security standards Under these


00:03:35.480 --> 00:03:38.229
contracts all three companies must meet


00:03:38.239 --> 00:03:40.390
stringent mission assurance requirements


00:03:40.400 --> 00:03:42.390
and participate in joint integration


00:03:42.400 --> 00:03:44.869
efforts with government teams This


00:03:44.879 --> 00:03:46.550
development builds on the Pentagon's


00:03:46.560 --> 00:03:48.869
ongoing efforts to eliminate dependence


00:03:48.879 --> 00:03:51.110
on Russian-made rocket engines while


00:03:51.120 --> 00:03:53.030
fostering a competitive domestic launch


00:03:53.040 --> 00:03:55.710
market capable of meeting evolving space


00:03:55.720 --> 00:03:57.910
requirements The first round of mission


00:03:57.920 --> 00:04:00.149
assignments under these new contracts


00:04:00.159 --> 00:04:02.309
will be announced later this year with


00:04:02.319 --> 00:04:04.070
launches expected to take place from


00:04:04.080 --> 00:04:07.229
fiscal year 2027 through


00:04:07.239 --> 00:04:09.910
2032 Next let's get a wrap on the major


00:04:09.920 --> 00:04:11.910
story of the week In a remarkable


00:04:11.920 --> 00:04:13.750
achievement for commercial space flight


00:04:13.760 --> 00:04:15.750
four space tourists have safely returned


00:04:15.760 --> 00:04:17.189
to Earth after completing a


00:04:17.199 --> 00:04:19.430
groundbreaking orbital journey circling


00:04:19.440 --> 00:04:21.150
the globe above the North and South


00:04:21.160 --> 00:04:23.590
Poles This historic mission which


00:04:23.600 --> 00:04:25.030
concluded with a Pacific Ocean


00:04:25.040 --> 00:04:27.430
splashdown this past Friday marks both


00:04:27.440 --> 00:04:29.270
the first human space flight to traverse


00:04:29.280 --> 00:04:31.430
this unique polar route and the first


00:04:31.440 --> 00:04:33.030
Pacific splashdown for a crude


00:04:33.040 --> 00:04:35.510
spacecraft in five decades Bitcoin


00:04:35.520 --> 00:04:37.430
entrepreneur Chun Wong privately


00:04:37.440 --> 00:04:39.350
chartered the SpaceX Dragon capsule for


00:04:39.360 --> 00:04:41.430
this extraordinary adventure though he


00:04:41.440 --> 00:04:43.189
declined to reveal the price tag for the


00:04:43.199 --> 00:04:46.310
3.5day journey Wong carefully selected


00:04:46.320 --> 00:04:48.710
his three fellow travelers Norwegian


00:04:48.720 --> 00:04:50.950
filmmaker Janica Mickelson German


00:04:50.960 --> 00:04:53.430
robotics researcher Rebea Roga and


00:04:53.440 --> 00:04:55.909
Australian polar guide Eric Phillips


00:04:55.919 --> 00:04:57.990
Together they experienced views of our


00:04:58.000 --> 00:04:59.510
planet that no human had witnessed


00:04:59.520 --> 00:05:02.310
before from this orbital perspective The


00:05:02.320 --> 00:05:03.990
Cruz Dragon capsule featured a


00:05:04.000 --> 00:05:06.150
specialized domed window providing


00:05:06.160 --> 00:05:09.590
breathtaking 360° views of Earth's polar


00:05:09.600 --> 00:05:12.310
regions and everything in between Roga


00:05:12.320 --> 00:05:14.550
described the polar landscapes as epic


00:05:14.560 --> 00:05:16.710
and likened them to another kind of


00:05:16.720 --> 00:05:19.310
desert that extends endlessly across the


00:05:19.320 --> 00:05:22.390
horizon Meanwhile Mickelson documented


00:05:22.400 --> 00:05:24.710
the journey extensively bringing along


00:05:24.720 --> 00:05:26.790
professional camera equipment to capture


00:05:26.800 --> 00:05:29.510
their unprecedented vantage point The


00:05:29.520 --> 00:05:31.830
journey wasn't without its challenges


00:05:31.840 --> 00:05:34.150
All four passengers experienced space


00:05:34.160 --> 00:05:36.710
motion sickness after reaching orbit


00:05:36.720 --> 00:05:39.510
According to Wang's social media updates


00:05:39.520 --> 00:05:41.909
however by the second day they had


00:05:41.919 --> 00:05:43.749
adjusted to the weightless environment


00:05:43.759 --> 00:05:45.749
and eagerly opened the window cover


00:05:45.759 --> 00:05:47.590
right above the South Pole to take in


00:05:47.600 --> 00:05:49.990
the extraordinary view Beyond


00:05:50.000 --> 00:05:51.830
sightseeing the crew conducted


00:05:51.840 --> 00:05:53.670
meaningful scientific work during their


00:05:53.680 --> 00:05:56.070
brief mission They performed the first


00:05:56.080 --> 00:05:58.150
medical X-rays in space as part of a


00:05:58.160 --> 00:06:00.469
test procedure and completed two dozen


00:06:00.479 --> 00:06:02.870
additional science experiments The


00:06:02.880 --> 00:06:05.189
mission was named FRAM 2 after the


00:06:05.199 --> 00:06:07.029
Norwegian sailing ship that carried


00:06:07.039 --> 00:06:08.870
explorers to the polar regions more than


00:06:08.880 --> 00:06:11.590
a century ago In a touching tribute a


00:06:11.600 --> 00:06:13.189
fragment of the original ship's wooden


00:06:13.199 --> 00:06:15.990
deck accompanied the crew to space E


00:06:16.000 --> 00:06:17.909
SpaceX noted that this mission also


00:06:17.919 --> 00:06:19.670
marked a shift in their operational


00:06:19.680 --> 00:06:21.990
approach as they've decided to switch


00:06:22.000 --> 00:06:24.309
future splashdown sites from Florida to


00:06:24.319 --> 00:06:27.270
the Pacific Ocean for safety reasons


00:06:27.280 --> 00:06:29.270
This ensures that any surviving pieces


00:06:29.280 --> 00:06:31.590
of the trunk section which is jettisoned


00:06:31.600 --> 00:06:33.430
near the end of flight will fall


00:06:33.440 --> 00:06:36.749
harmlessly into the ocean Historically


00:06:36.759 --> 00:06:39.350
significant the last space travelers to


00:06:39.360 --> 00:06:41.510
return from orbit to the Pacific were


00:06:41.520 --> 00:06:44.870
the three NASA astronauts from the 1975


00:06:44.880 --> 00:06:47.990
Apollo Soyuse mission This pioneering


00:06:48.000 --> 00:06:50.070
polar orbit journey represents another


00:06:50.080 --> 00:06:52.550
significant milestone in the rapidly


00:06:52.560 --> 00:06:54.670
evolving landscape of commercial space


00:06:54.680 --> 00:06:57.150
tourism demonstrating the expanding


00:06:57.160 --> 00:07:00.230
capabilities and unique experiences now


00:07:00.240 --> 00:07:02.390
becoming available beyond traditional


00:07:02.400 --> 00:07:05.029
government space programs


00:07:05.039 --> 00:07:06.469
Have you ever wondered what they do on


00:07:06.479 --> 00:07:09.350
the ISS from day to day Well I'll tell


00:07:09.360 --> 00:07:11.830
you It's been a bustling week aboard the


00:07:11.840 --> 00:07:14.150
International Space Station as the


00:07:14.160 --> 00:07:17.110
Expedition 72 crew balances cutting edge


00:07:17.120 --> 00:07:19.430
research with preparation for upcoming


00:07:19.440 --> 00:07:22.070
crew changes The orbital laboratory


00:07:22.080 --> 00:07:24.230
continues to serve as humanity's premier


00:07:24.240 --> 00:07:26.550
microgravity research platform with


00:07:26.560 --> 00:07:28.790
activities spanning from robotics to


00:07:28.800 --> 00:07:32.150
human physiology studies NASA astronauts


00:07:32.160 --> 00:07:34.950
Don Pettit and Jaxa's Takuya Onishi


00:07:34.960 --> 00:07:36.950
collaborated on an innovative robotics


00:07:36.960 --> 00:07:39.110
experiment using the station's Astrob


00:07:39.120 --> 00:07:41.990
free-flying robots These cube- shaped


00:07:42.000 --> 00:07:43.909
autonomous devices equipped with


00:07:43.919 --> 00:07:45.830
tentacle-like grippers featuring gecko


00:07:45.840 --> 00:07:48.309
inspired adhesive pads were tested on


00:07:48.319 --> 00:07:50.790
their ability to detect maneuver toward


00:07:50.800 --> 00:07:53.830
and capture objects in microgravity The


00:07:53.840 --> 00:07:55.350
technology demonstrates promising


00:07:55.360 --> 00:07:57.189
applications for future satellite


00:07:57.199 --> 00:07:59.430
servicing and space debris removal


00:07:59.440 --> 00:08:01.350
critical capabilities as we work towards


00:08:01.360 --> 00:08:04.150
sustainable space operations Meanwhile


00:08:04.160 --> 00:08:05.749
the unique environment of space


00:08:05.759 --> 00:08:07.670
continues providing valuable insights


00:08:07.680 --> 00:08:10.790
into human health NASA flight engineer


00:08:10.800 --> 00:08:12.629
Nicole Ayes conducted exercise


00:08:12.639 --> 00:08:14.469
physiology research pedaling on a


00:08:14.479 --> 00:08:16.309
specialized cycle while connected to


00:08:16.319 --> 00:08:18.869
sensors and breathing equipment The data


00:08:18.879 --> 00:08:20.790
collected helps scientists understand


00:08:20.800 --> 00:08:23.029
how the cardiovascular system adapts to


00:08:23.039 --> 00:08:24.550
weightlessness and guides the


00:08:24.560 --> 00:08:26.309
development of more effective exercise


00:08:26.319 --> 00:08:28.670
protocols for longduration space


00:08:28.680 --> 00:08:31.189
missions Another fascinating experiment


00:08:31.199 --> 00:08:33.350
involved Onishi wearing a specialized


00:08:33.360 --> 00:08:35.909
thigh cuff designed to alter fluid


00:08:35.919 --> 00:08:38.230
distribution in the body This research


00:08:38.240 --> 00:08:40.230
tackles one of spaceflight's persistent


00:08:40.240 --> 00:08:42.630
medical challenges the fluid shift


00:08:42.640 --> 00:08:45.110
toward the head that can cause increased


00:08:45.120 --> 00:08:47.990
pressure in the eyes and brain Ayes


00:08:48.000 --> 00:08:49.829
assisted by using ultrasound equipment


00:08:49.839 --> 00:08:52.310
to measure blood flow in Onishi's legs


00:08:52.320 --> 00:08:54.870
Evaluating the cuff's effectiveness


00:08:54.880 --> 00:08:56.630
Maintaining the station's complex life


00:08:56.640 --> 00:08:58.710
support systems remains a priority


00:08:58.720 --> 00:09:00.949
Ayers's Pettit and NASA's Anne Mlan


00:09:00.959 --> 00:09:02.230
performed critical space suit


00:09:02.240 --> 00:09:03.990
maintenance in the Quest airlock


00:09:04.000 --> 00:09:06.070
checking for oxygen leaks replacing


00:09:06.080 --> 00:09:08.070
electronic components and servicing life


00:09:08.080 --> 00:09:10.470
support gear These routine but essential


00:09:10.480 --> 00:09:12.630
tasks ensure the suits remain ready for


00:09:12.640 --> 00:09:14.790
emergency situations or scheduled spacew


00:09:14.800 --> 00:09:18.310
walks On the Russian segment cosminauts


00:09:18.320 --> 00:09:20.710
focused on environmental monitoring


00:09:20.720 --> 00:09:23.269
Roscosmos flight engineer Evan Vagner


00:09:23.279 --> 00:09:25.350
collected microbial samples from various


00:09:25.360 --> 00:09:27.670
station surfaces to better understand


00:09:27.680 --> 00:09:30.269
how microorganisms adapt to spaceflight


00:09:30.279 --> 00:09:32.470
conditions Research crucial for


00:09:32.480 --> 00:09:34.070
maintaining crew health during future


00:09:34.080 --> 00:09:36.870
longduration missions Fellow cosminaut


00:09:36.880 --> 00:09:39.110
Kierill Pescov measured carbon dioxide


00:09:39.120 --> 00:09:41.030
levels and performed maintenance on


00:09:41.040 --> 00:09:43.110
communications equipment As the current


00:09:43.120 --> 00:09:45.509
crew continues their orbital work a


00:09:45.519 --> 00:09:47.509
fresh trio of space fairers is making


00:09:47.519 --> 00:09:50.150
final preparations for launch NASA


00:09:50.160 --> 00:09:52.710
astronaut Johnny Kim and Rosscosmos


00:09:52.720 --> 00:09:55.030
cosminauts Sergey Riakov and Alexander


00:09:55.040 --> 00:09:57.110
Zubritzky are scheduled to lift off


00:09:57.120 --> 00:10:00.150
aboard the Soyuse MS27 spacecraft on


00:10:00.160 --> 00:10:02.990
April 8th from the Biconor Cosmodrome in


00:10:03.000 --> 00:10:05.190
Kazakhstan Following a three-hour


00:10:05.200 --> 00:10:06.949
journey to catch up with the station


00:10:06.959 --> 00:10:09.190
they'll dock to the Prashall module and


00:10:09.200 --> 00:10:12.070
begin an eight-month scientific mission


00:10:12.080 --> 00:10:14.150
Meanwhile station commander Alexi


00:10:14.160 --> 00:10:17.350
Ovchenin is readying the Soyuse MS26


00:10:17.360 --> 00:10:19.190
spacecraft for its return journey on


00:10:19.200 --> 00:10:21.509
April 19th when he'll bring Vagner and


00:10:21.519 --> 00:10:23.269
Pettit back to Earth after their


00:10:23.279 --> 00:10:25.910
extended stay in orbit This carefully


00:10:25.920 --> 00:10:27.829
choreographed crew rotation ensures


00:10:27.839 --> 00:10:29.590
continuous human presence aboard our


00:10:29.600 --> 00:10:31.670
outpost in space maintaining the


00:10:31.680 --> 00:10:33.590
unbroken chain of occupation that now


00:10:33.600 --> 00:10:35.630
extends beyond two


00:10:35.640 --> 00:10:38.630
decades Next up today stars don't just


00:10:38.640 --> 00:10:41.110
shine they hum with hidden vibrations


00:10:41.120 --> 00:10:42.870
that could unlock secrets about their


00:10:42.880 --> 00:10:44.949
inner workings Scientists have


00:10:44.959 --> 00:10:46.870
discovered a fascinating new method to


00:10:46.880 --> 00:10:48.949
study what they call stellar quakes


00:10:48.959 --> 00:10:50.710
which are ripples of gas on a star


00:10:50.720 --> 00:10:52.550
surface that offer tantalizing clues


00:10:52.560 --> 00:10:55.269
about what lies beneath These stellar


00:10:55.279 --> 00:10:57.590
quakes function remarkably similarly to


00:10:57.600 --> 00:10:59.910
earthquakes here on our planet When hot


00:10:59.920 --> 00:11:02.550
gas rises cools and sinks in a churning


00:11:02.560 --> 00:11:05.030
cycle within a stars convective envelope


00:11:05.040 --> 00:11:07.190
the turbulent outer layer it creates


00:11:07.200 --> 00:11:09.110
vibrations that propagate throughout the


00:11:09.120 --> 00:11:12.310
entire stellar body By detecting subtle


00:11:12.320 --> 00:11:14.310
variations in a stars brightness


00:11:14.320 --> 00:11:16.230
astronomers can identify these acoustic


00:11:16.240 --> 00:11:17.910
oscillations


00:11:17.920 --> 00:11:19.750
Stellar quakes happen in most stars that


00:11:19.760 --> 00:11:21.829
have a bubbling outer layer like a pot


00:11:21.839 --> 00:11:24.150
of boiling water explains Claudia Reyes


00:11:24.160 --> 00:11:25.590
who conducted the research at the


00:11:25.600 --> 00:11:27.750
University of New South Wales These


00:11:27.760 --> 00:11:29.990
bubbles of hot gas rise and burst at the


00:11:30.000 --> 00:11:31.829
surface sending ripples through the


00:11:31.839 --> 00:11:34.710
entire star Just as each musical


00:11:34.720 --> 00:11:36.550
instrument produces its own distinctive


00:11:36.560 --> 00:11:39.350
sound each star vibrates with unique


00:11:39.360 --> 00:11:41.509
resonant frequencies determined by its


00:11:41.519 --> 00:11:43.350
internal structure and physical


00:11:43.360 --> 00:11:46.230
properties Larger stars produce deeper


00:11:46.240 --> 00:11:48.710
slower vibrations while smaller stars


00:11:48.720 --> 00:11:51.509
vibrate at higher pitches By analyzing


00:11:51.519 --> 00:11:53.829
specific aspects of these vibrations


00:11:53.839 --> 00:11:55.590
such as what scientists call small


00:11:55.600 --> 00:11:57.829
frequency spacing researchers can


00:11:57.839 --> 00:12:00.550
estimate a stars hydrogen fuel reserves


00:12:00.560 --> 00:12:02.310
essentially determining how far along it


00:12:02.320 --> 00:12:04.949
is in its life cycle The research team


00:12:04.959 --> 00:12:06.949
focused on measuring stellar quakes in


00:12:06.959 --> 00:12:10.870
27 stars from Messier 67 an open cluster


00:12:10.880 --> 00:12:13.269
containing over 500 stars with an age


00:12:13.279 --> 00:12:16.069
similar to our sun This cluster offered


00:12:16.079 --> 00:12:18.069
an ideal laboratory since it contains


00:12:18.079 --> 00:12:19.990
many stars at different evolutionary


00:12:20.000 --> 00:12:22.230
stages but with similar chemical


00:12:22.240 --> 00:12:23.990
compositions


00:12:24.000 --> 00:12:25.829
What made their findings particularly


00:12:25.839 --> 00:12:28.509
exciting was the discovery of a stalling


00:12:28.519 --> 00:12:30.629
frequency a point where a stars


00:12:30.639 --> 00:12:32.870
vibrations stop changing and repeat the


00:12:32.880 --> 00:12:35.190
same note This stalling correlates with


00:12:35.200 --> 00:12:36.790
the lower boundary of the stars


00:12:36.800 --> 00:12:38.550
convective envelope providing


00:12:38.560 --> 00:12:40.230
astronomers with a powerful new


00:12:40.240 --> 00:12:42.470
diagnostic tool to estimate stellar


00:12:42.480 --> 00:12:45.350
masses and ages with improved precision


00:12:45.360 --> 00:12:47.269
Stars are like fossil records that carry


00:12:47.279 --> 00:12:48.710
information about the environments in


00:12:48.720 --> 00:12:51.269
which they formed noted Reyes By


00:12:51.279 --> 00:12:53.350
studying them astronomers can piece


00:12:53.360 --> 00:12:56.150
together the story of our galaxy This


00:12:56.160 --> 00:12:57.829
breakthrough in stellar seismology


00:12:57.839 --> 00:12:59.829
promises to enhance our understanding of


00:12:59.839 --> 00:13:02.310
stellar evolution and galactic history


00:13:02.320 --> 00:13:04.150
By decoding the subtle music of the


00:13:04.160 --> 00:13:06.710
stars scientists are developing a more


00:13:06.720 --> 00:13:08.949
accurate cosmic timeline and gaining


00:13:08.959 --> 00:13:11.350
insights into the fundamental processes


00:13:11.360 --> 00:13:14.150
that drive stellar life cycles including


00:13:14.160 --> 00:13:15.910
what might eventually happen to our own


00:13:15.920 --> 00:13:17.509
son


00:13:17.519 --> 00:13:19.430
Finally today let's check in with an old


00:13:19.440 --> 00:13:21.829
friend The James Webb Space Telescope


00:13:21.839 --> 00:13:23.190
has made another groundbreaking


00:13:23.200 --> 00:13:25.750
discovery uncovering a colossal spiral


00:13:25.760 --> 00:13:27.269
galaxy that's challenging our


00:13:27.279 --> 00:13:29.509
understanding of galactic evolution


00:13:29.519 --> 00:13:32.629
Nicknamed Big Wheel this enormous galaxy


00:13:32.639 --> 00:13:35.269
existed just 2 billion years after the


00:13:35.279 --> 00:13:37.509
Big Bang during what should have been


00:13:37.519 --> 00:13:39.590
the cosmic equivalent of childhood for


00:13:39.600 --> 00:13:41.350
most galaxies


00:13:41.360 --> 00:13:43.269
The discovery comes from astronomers at


00:13:43.279 --> 00:13:45.590
the University of Milano Bikoka who


00:13:45.600 --> 00:13:47.829
found Big Wheel near a quazar an


00:13:47.839 --> 00:13:49.910
extremely powerful and active super


00:13:49.920 --> 00:13:53.190
massive black hole Located a staggering


00:13:53.200 --> 00:13:55.910
11.7 billion light-years away this


00:13:55.920 --> 00:13:57.910
ancient galaxy earned its nickname from


00:13:57.920 --> 00:13:59.990
both its impressive size and remarkably


00:14:00.000 --> 00:14:02.550
fast rotation What makes Big Wheel so


00:14:02.560 --> 00:14:05.269
extraordinary is its scale and maturity


00:14:05.279 --> 00:14:07.030
It's approximately five times more


00:14:07.040 --> 00:14:09.110
massive than our own Milky Way and


00:14:09.120 --> 00:14:12.069
stretches across 100,000 lightyear Using


00:14:12.079 --> 00:14:14.030
the telescope's near infrared


00:14:14.040 --> 00:14:16.310
spectrograph researchers confirmed that


00:14:16.320 --> 00:14:18.230
Big Wheel is a fully formed rotating


00:14:18.240 --> 00:14:20.470
disc with characteristics typically


00:14:20.480 --> 00:14:22.189
found only in much more developed


00:14:22.199 --> 00:14:24.870
galaxies The galaxy's rotation curve


00:14:24.880 --> 00:14:26.790
shows a pattern consistent with mature


00:14:26.800 --> 00:14:29.509
spiral galaxies we observe today Its


00:14:29.519 --> 00:14:31.590
velocity increases as you move outward


00:14:31.600 --> 00:14:34.110
from the center reaching several hundred


00:14:34.120 --> 00:14:36.710
miles remarkably similar to galaxies


00:14:36.720 --> 00:14:39.069
that have had billions more years to


00:14:39.079 --> 00:14:41.790
develop This suggests that despite its


00:14:41.800 --> 00:14:44.470
youth Big Wheel was already behaving


00:14:44.480 --> 00:14:47.030
like a fully mature galaxy during an era


00:14:47.040 --> 00:14:49.189
when most galaxies were expected to be


00:14:49.199 --> 00:14:50.870
small and in their earliest


00:14:50.880 --> 00:14:53.910
developmental stages This galaxy is


00:14:53.920 --> 00:14:55.910
spectacular for being among the largest


00:14:55.920 --> 00:14:58.069
spiral galaxies ever found which is


00:14:58.079 --> 00:15:00.069
unprecedented for this early era of the


00:15:00.079 --> 00:15:02.870
universe explains Charles Stidle the


00:15:02.880 --> 00:15:04.629
study's lead author and astronomy


00:15:04.639 --> 00:15:07.269
professor at Caltech So how did Big


00:15:07.279 --> 00:15:10.069
Wheel form so quickly One clue may lie


00:15:10.079 --> 00:15:12.389
in its cosmic neighborhood The galaxy


00:15:12.399 --> 00:15:14.470
resides in an extraordinarily dense


00:15:14.480 --> 00:15:16.629
region of space where galaxy


00:15:16.639 --> 00:15:18.629
concentrations are more than 10 times


00:15:18.639 --> 00:15:21.350
higher than the cosmic average This


00:15:21.360 --> 00:15:23.110
crowded environment may have provided


00:15:23.120 --> 00:15:25.509
ideal conditions for accelerated growth


00:15:25.519 --> 00:15:27.350
through efficient gas accretion and


00:15:27.360 --> 00:15:29.550
frequent mergers with other gas-rich


00:15:29.560 --> 00:15:32.069
galaxies We think this may open the door


00:15:32.079 --> 00:15:34.230
to understanding how some galaxies were


00:15:34.240 --> 00:15:36.949
able to bypass the usual slow process of


00:15:36.959 --> 00:15:39.430
star formation and grow to enormous


00:15:39.440 --> 00:15:42.069
sizes in the early universe Notes study


00:15:42.079 --> 00:15:45.189
co-author Sebastiano Canalupo Big


00:15:45.199 --> 00:15:47.509
Wheel's existence presents a significant


00:15:47.519 --> 00:15:50.150
challenge to current cosmological models


00:15:50.160 --> 00:15:52.069
which don't predict galaxies of this


00:15:52.079 --> 00:15:54.949
size and mass so early in the universe's


00:15:54.959 --> 00:15:57.430
history The discovery suggests that


00:15:57.440 --> 00:15:59.590
under certain conditions galaxy


00:15:59.600 --> 00:16:01.749
formation might not be the gradual


00:16:01.759 --> 00:16:04.389
process scientists previously thought


00:16:04.399 --> 00:16:06.710
Instead some galaxies may experience


00:16:06.720 --> 00:16:08.629
dramatic growth spurts in environments


00:16:08.639 --> 00:16:10.829
rich with the necessary building


00:16:10.839 --> 00:16:13.269
materials As astronomers continue


00:16:13.279 --> 00:16:15.509
studying this cosmic outlier they may


00:16:15.519 --> 00:16:17.269
need to adjust their models to account


00:16:17.279 --> 00:16:19.470
for these accelerated development


00:16:19.480 --> 00:16:22.150
pathways Big Wheel stands as a testament


00:16:22.160 --> 00:16:24.870
to the universe's ability to surprise us


00:16:24.880 --> 00:16:26.949
even as our observational capabilities


00:16:26.959 --> 00:16:30.030
reach unprecedented levels of


00:16:30.040 --> 00:16:32.389
sophistication And that wraps up today's


00:16:32.399 --> 00:16:35.110
episode of Astronomy Daily From SpaceX


00:16:35.120 --> 00:16:37.030
securing military launch contracts to


00:16:37.040 --> 00:16:38.870
groundbreaking space tourism over the


00:16:38.880 --> 00:16:40.870
poles From cutting edge robotics


00:16:40.880 --> 00:16:43.590
research on the ISS to the discovery of


00:16:43.600 --> 00:16:45.509
stellar quakes helping us understand


00:16:45.519 --> 00:16:48.230
stars and finally to the astonishing big


00:16:48.240 --> 00:16:50.310
wheel galaxy challenging our


00:16:50.320 --> 00:16:53.189
understanding of cosmic evolution The


00:16:53.199 --> 00:16:55.350
universe continues to amaze and surprise


00:16:55.360 --> 00:16:58.069
us I hope these stories have sparked


00:16:58.079 --> 00:17:00.069
your curiosity about the vastness above


00:17:00.079 --> 00:17:02.150
us and the incredible scientific


00:17:02.160 --> 00:17:04.230
endeavors working to understand it


00:17:04.240 --> 00:17:05.829
There's always something new to discover


00:17:05.839 --> 00:17:08.069
in the cosmos and we'll be here to bring


00:17:08.079 --> 00:17:10.710
those discoveries right to you I'm Anna


00:17:10.720 --> 00:17:12.230
and it's been my pleasure being your


00:17:12.240 --> 00:17:15.189
host today If you enjoyed this episode I


00:17:15.199 --> 00:17:17.630
invite you to visit our website at


00:17:17.640 --> 00:17:19.510
astronomydaily.io where you can sign up


00:17:19.520 --> 00:17:21.750
for our free daily newsletter While


00:17:21.760 --> 00:17:23.990
you're there you can catch up on all the


00:17:24.000 --> 00:17:26.390
latest space and astronomy news with our


00:17:26.400 --> 00:17:28.069
constantly updating news feed and listen


00:17:28.079 --> 00:17:30.789
to all our back episodes We'd love to


00:17:30.799 --> 00:17:32.630
connect with you on social media as well


00:17:32.640 --> 00:17:34.549
Just search for Astro Daily Pod on


00:17:34.559 --> 00:17:36.630
Facebook X YouTube YouTube Music


00:17:36.640 --> 00:17:38.870
Instagram and Tik Tok Thanks so much for


00:17:38.880 --> 00:17:40.710
tuning in today and remember to keep


00:17:40.720 --> 00:17:42.870
looking up The universe is an endless


00:17:42.880 --> 00:17:45.110
source of wonder Until next time this is


00:17:45.120 --> 00:17:49.270
Astronomy Daily


00:17:49.280 --> 00:17:56.270
Stories


00:17:56.280 --> 00:17:59.600
told stories


00:17:59.610 --> 00:18:04.190
[Music]


00:18:04.200 --> 00:18:07.919
told stories