Highlights:
- Intuitive Machines' Lunar Lander Mishap: Discover the factors that led to the topple of Intuitive Machine's Nova C lander during its lunar touchdown. Learn how issues with laser altimeters and challenging lighting conditions at the Moon's south pole contributed to this landing anomaly and what improvements are planned for future missions.
- The Universe's Ultimate End: Explore new research from Radboud University that revises predictions about the universe's demise, suggesting it may happen in about 10 to the power of 78 years. Understand the implications of Hawking radiation and how this research bridges gaps between quantum mechanics and general relativity.
- Life on the International Space Station: Get an inside look at the busy lives of astronauts aboard the ISS as they conduct biotechnology experiments and research on fire behavior in microgravity. Discover how their work contributes to both space safety and advancements on Earth.
- Historic Decommissioning of Galileo Satellite: Mark a significant milestone as the European Space Agency bids farewell to its first decommissioned Galileo satellite, GSAT 0104, after 12 years of service. This event underscores the importance of responsible space operations and sustainability in satellite management.
- Rapid Emergence of Life on Earth: Delve into groundbreaking research suggesting that life on Earth may have emerged much more quickly than previously thought. This study provides compelling evidence supporting the hypothesis of rapid abiogenesis, raising intriguing questions about the potential for life elsewhere in the universe.
For more cosmic updates, visit our website at 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.
Chapters:
00:00 - Welcome to Astronomy Daily
01:10 - Intuitive Machines' lunar lander mishap
10:00 - The universe's ultimate end and Hawking radiation
15:30 - Life aboard the International Space Station
20:00 - Historic decommissioning of Galileo satellite
25:00 - Rapid emergence of life on Earth
✍️ Episode References
Intuitive Machines Lunar Lander
[Intuitive Machines](https://www.intuitivemachines.com/)
Radboud University Research
[Radboud University](https://www.ru.nl/)
International Space Station Research
[NASA ISS](https://www.nasa.gov/mission_pages/station/main/index.html)
Galileo Satellite Decommissioning
[European Space Agency](https://www.esa.int/)
Rapid Abiogenesis Research
[David Kipping's Study](https://www.columbia.edu/~dkipping/)
Astronomy Daily
[Astronomy Daily](http://www.astronomydaily.io/)
Become a supporter of this podcast: https://www.spreaker.com/podcast/astronomy-daily-exciting-space-discoveries-and-news--5648921/support.
Sponsor Details:
Ensure your online privacy by using NordVPN. To get our special listener deal and save a lot of money, visit www.bitesz.com/nordvpn. You'll be glad you did!
Become a supporter of Astronomy Daily by joining our Supporters Club. Commercial free episodes daily are only a click way... Click Here
00:00:00 --> 00:00:02 Anna: Welcome to Astronomy Daily, your daily dose
00:00:02 --> 00:00:04 of everything happening beyond our
00:00:04 --> 00:00:07 atmosphere. I'm Anna and I'm thrilled to
00:00:07 --> 00:00:09 have you join me for today's cosmic journey
00:00:09 --> 00:00:11 through the latest developments in space
00:00:11 --> 00:00:13 exploration and astronomical research.
00:00:14 --> 00:00:16 We've got a packed episode for you today with
00:00:16 --> 00:00:18 some fascinating stories spanning from our
00:00:18 --> 00:00:20 nearest celestial neighbor all the way to the
00:00:20 --> 00:00:23 ultimate fate of the universe itself. First
00:00:23 --> 00:00:25 up, we'll dive into what exactly caused
00:00:25 --> 00:00:27 Intuitive Machine's second lunar lander to
00:00:27 --> 00:00:29 topple over when it touched down on the Moon
00:00:29 --> 00:00:32 in March. The company has identified
00:00:32 --> 00:00:34 several factors that contributed to this
00:00:34 --> 00:00:36 unexpected landing position, including some
00:00:36 --> 00:00:38 interesting challenges with their laser
00:00:38 --> 00:00:41 altimeters and the tricky lighting conditions
00:00:41 --> 00:00:43 near the lunar South Pole. We'll explore how
00:00:43 --> 00:00:45 they're planning to address these issues for
00:00:45 --> 00:00:48 future missions. Then we'll look
00:00:48 --> 00:00:51 at how Intuitive Machines is diversifying
00:00:51 --> 00:00:54 beyond just lunar landers, especially as
00:00:54 --> 00:00:56 NASA's Artemis program faces potential major
00:00:56 --> 00:00:59 changes under new budget proposals. It's a
00:00:59 --> 00:01:01 fascinating look at how commercial space
00:01:01 --> 00:01:03 companies adapt to shifting priorities in
00:01:03 --> 00:01:06 space exploration. Next, we
00:01:06 --> 00:01:08 have some mind bending research about the
00:01:08 --> 00:01:11 ultimate end of the universe. Scientists from
00:01:11 --> 00:01:13 Radboud University have revised their
00:01:13 --> 00:01:15 predictions about when and how the cosmos
00:01:15 --> 00:01:18 might meet its final demise. Spoiler alert.
00:01:18 --> 00:01:20 It's still an incomprehensibly long time
00:01:20 --> 00:01:23 away, but apparently sooner than previously
00:01:23 --> 00:01:25 thought. We'll break down what this means and
00:01:25 --> 00:01:27 the science of Hawking radiation that's
00:01:27 --> 00:01:30 driving these new calculations. We'll also
00:01:30 --> 00:01:31 check in with the crew aboard the
00:01:31 --> 00:01:33 International Space station, where the
00:01:33 --> 00:01:36 Expedition 73 team has been busy with
00:01:36 --> 00:01:38 biotechnology experiments and important
00:01:38 --> 00:01:41 research on how fire behaves in microgravity.
00:01:41 --> 00:01:43 Their findings could have significant
00:01:43 --> 00:01:45 implications for fire safety both in space
00:01:46 --> 00:01:48 and here on Earth. Then we'll
00:01:48 --> 00:01:50 mark a historic milestone in satellite
00:01:50 --> 00:01:53 navigation as the European Space Agency bids
00:01:53 --> 00:01:55 farewell to its first ever decommissioned
00:01:55 --> 00:01:57 Galileo satellite after 12 years of service.
00:01:58 --> 00:02:00 It's a reminder that responsible space
00:02:00 --> 00:02:02 operations include not just launching new
00:02:02 --> 00:02:04 technology, but properly retiring old
00:02:04 --> 00:02:07 satellites as well. And finally, we'll
00:02:07 --> 00:02:10 explore fascinating new research suggesting
00:02:10 --> 00:02:11 that life on Earth may have emerged
00:02:11 --> 00:02:14 remarkably quickly after our planet formed.
00:02:14 --> 00:02:16 This study provides the strongest evidence
00:02:16 --> 00:02:19 yet that the process of abiogenesis, the
00:02:19 --> 00:02:21 development of life from non living matter,
00:02:21 --> 00:02:23 might be a relatively rapid phenomenon under
00:02:23 --> 00:02:26 Earth like conditions. The implications for
00:02:26 --> 00:02:28 the search for life elsewhere are profound,
00:02:29 --> 00:02:31 so buckle up for a journey across the cosmos
00:02:31 --> 00:02:34 as we explore these stories and more on
00:02:34 --> 00:02:36 today's episode of Astronomy Daily.
00:02:37 --> 00:02:39 In what has become a cautionary tale about
00:02:39 --> 00:02:42 the challenges of lunar landings, Intuitive
00:02:42 --> 00:02:44 Machines has now revealed exactly what caused
00:02:44 --> 00:02:46 their Nova C lander to fall on its side
00:02:47 --> 00:02:49 during its touchdown in the moon's south
00:02:49 --> 00:02:51 polar region this past March, the
00:02:51 --> 00:02:54 company executives disclosed three key
00:02:54 --> 00:02:56 factors during a May earnings call that
00:02:56 --> 00:02:58 contributed to what they diplomatically
00:02:58 --> 00:03:01 termed a landing anomaly. First,
00:03:01 --> 00:03:03 and perhaps most significant, were issues
00:03:03 --> 00:03:06 with the lander's laser altimeters. According
00:03:06 --> 00:03:08 to CEO Steve Altemus, these crucial
00:03:08 --> 00:03:10 instruments experienced signal noise and
00:03:10 --> 00:03:12 distortion during the final descent phase.
00:03:13 --> 00:03:15 This interference prevented the altimeters
00:03:15 --> 00:03:17 from providing accurate altitude readings.
00:03:17 --> 00:03:19 Essentially, the spacecraft couldn't properly
00:03:19 --> 00:03:21 determine how far it was from the lunar
00:03:21 --> 00:03:24 surface as it approached touchdown. The
00:03:24 --> 00:03:26 second factor involves the unique lighting
00:03:26 --> 00:03:29 conditions at the moon's south pole. Unlike,
00:03:29 --> 00:03:31 equatorial regions, the south pole
00:03:31 --> 00:03:34 experiences extremely low sun angles,
00:03:34 --> 00:03:36 creating dramatic elongated shadows across
00:03:36 --> 00:03:39 the lunar landscape. These shadows
00:03:39 --> 00:03:41 severely challenged the precision
00:03:41 --> 00:03:43 capabilities of the lander's navigation
00:03:43 --> 00:03:46 systems, which rely partly on visual
00:03:46 --> 00:03:47 references to guide the descent.
00:03:48 --> 00:03:50 Connected to this lighting issue was a third
00:03:50 --> 00:03:53 problem involving crater recognition. The
00:03:53 --> 00:03:55 unusual lighting conditions made craters
00:03:55 --> 00:03:58 appear differently at lower altitudes than
00:03:58 --> 00:04:00 they did in the reference images from NASA's
00:04:00 --> 00:04:02 Lunar Reconnaissance Orbiter. This
00:04:02 --> 00:04:05 discrepancy confused the lander's optical
00:04:05 --> 00:04:07 navigation system, further complicating its
00:04:07 --> 00:04:10 ability to execute a proper landing. The
00:04:10 --> 00:04:12 combined effect of these issues resulted in
00:04:12 --> 00:04:15 the Nova C lander tipping over upon
00:04:15 --> 00:04:17 touchdown, falling onto its side within a
00:04:17 --> 00:04:20 crater. This unfortunate position prevented
00:04:20 --> 00:04:22 the spacecraft's solar panels from generating
00:04:22 --> 00:04:25 sufficient power, dramatically shortening its
00:04:25 --> 00:04:27 mission to barely 12 hours after landing,
00:04:28 --> 00:04:30 far less than planned. Despite this
00:04:30 --> 00:04:32 setback, Intuitive Machines is already
00:04:32 --> 00:04:35 implementing changes for their next lunar
00:04:35 --> 00:04:37 mission, M IM3, scheduled for launch next
00:04:37 --> 00:04:40 year. Altimus outlined several specific
00:04:40 --> 00:04:42 improvements, including the addition of
00:04:42 --> 00:04:45 dissimilar and redundant altimeters to
00:04:45 --> 00:04:47 provide backup measurements if one system
00:04:47 --> 00:04:50 fails. These systems will also undergo more
00:04:50 --> 00:04:52 rigorous flight like testing before launch to
00:04:52 --> 00:04:54 better simulate actual lunar conditions.
00:04:55 --> 00:04:57 The company is also developing a new lighting
00:04:57 --> 00:05:00 independent sensor specifically designed to
00:05:00 --> 00:05:03 measure surface velocity regardless of
00:05:03 --> 00:05:05 shadows or lighting angles. Additionally,
00:05:05 --> 00:05:07 they're enhancing their crater database to
00:05:07 --> 00:05:09 improve the optical navigation system's
00:05:09 --> 00:05:12 ability to recognize lunar features under
00:05:12 --> 00:05:13 various lighting conditions.
00:05:14 --> 00:05:16 Interestingly, these modifications won't
00:05:16 --> 00:05:19 delay the IM3 mission. Though Altemus
00:05:19 --> 00:05:21 acknowledged there would be a slight increase
00:05:21 --> 00:05:24 in costs due to the additional sensors,
00:05:24 --> 00:05:27 he didn't specify exactly how much more
00:05:27 --> 00:05:28 expensive the mission would become.
00:05:29 --> 00:05:32 Meanwhile, Intuitive Machines remains in
00:05:32 --> 00:05:34 negotiations with NASA and other customers
00:05:34 --> 00:05:37 about up to $14 million in success payments
00:05:38 --> 00:05:41 related to the IM2 mission. Despite
00:05:41 --> 00:05:43 the lander falling over, some payloads did
00:05:43 --> 00:05:46 manage to conduct limited tests. For
00:05:46 --> 00:05:49 example, a NASA drill was able to test its
00:05:49 --> 00:05:52 mechanisms, although it couldn't perform its
00:05:52 --> 00:05:54 primary objective of drilling into the lunar
00:05:54 --> 00:05:57 surface as as planned. This incident
00:05:57 --> 00:05:59 highlights the extraordinary difficulties
00:05:59 --> 00:06:02 involved in lunar landings, particularly in
00:06:02 --> 00:06:05 the challenging south polar region where NASA
00:06:05 --> 00:06:08 and other space agencies hope to establish a
00:06:08 --> 00:06:10 long term human presence. The extreme
00:06:10 --> 00:06:12 lighting conditions, combined with the
00:06:12 --> 00:06:14 complex terrain featuring numerous craters
00:06:14 --> 00:06:17 and shadows create a particularly demanding
00:06:17 --> 00:06:20 environment for precision landings. The
00:06:20 --> 00:06:21 lessons learned from this mission will
00:06:21 --> 00:06:23 undoubtedly inform not just Intuitive
00:06:23 --> 00:06:25 Machines future attempts to but also the
00:06:25 --> 00:06:28 broader commercial lunar industry, as it
00:06:28 --> 00:06:30 supports NASA's Artemis program and other
00:06:30 --> 00:06:33 initiatives aimed at returning humans to the
00:06:33 --> 00:06:35 lunar surface in the coming years. Beyond
00:06:35 --> 00:06:37 their lunar landing setbacks, Intuitive
00:06:37 --> 00:06:40 Machines is actively working to diversify
00:06:40 --> 00:06:42 their space business portfolio. During their
00:06:42 --> 00:06:45 recent earnings call, CEO Steve Altemus
00:06:45 --> 00:06:48 emphasized the company's efforts to expand
00:06:48 --> 00:06:50 beyond their core lunar lander technology
00:06:50 --> 00:06:52 into other promising space sectors.
00:06:53 --> 00:06:55 One notable project involves the design of an
00:06:55 --> 00:06:58 orbital transfer vehicle based on their Nova
00:06:58 --> 00:07:01 C lander architecture. This work is being
00:07:01 --> 00:07:03 conducted with an unnamed government customer
00:07:03 --> 00:07:05 and leverages the company's existing
00:07:05 --> 00:07:08 expertise in spacecraft design while opening
00:07:08 --> 00:07:10 new market opportunities in orbital
00:07:10 --> 00:07:13 logistics. Intuitive Machines is
00:07:13 --> 00:07:14 also collaborating with the Air Force
00:07:14 --> 00:07:17 Research Laboratory on the ambitious Jetson
00:07:17 --> 00:07:20 project. This initiative aims to develop a
00:07:20 --> 00:07:22 spacecraft utilizing nuclear electric
00:07:22 --> 00:07:25 propulsion, a potentially revolutionary
00:07:25 --> 00:07:27 technology that could dramatically increase
00:07:27 --> 00:07:29 the capabilities and range of future space
00:07:29 --> 00:07:32 missions. In February, the company
00:07:32 --> 00:07:34 secured a $10 million grant from the
00:07:34 --> 00:07:37 Texas Space Commission to support their work
00:07:37 --> 00:07:39 on a lifting body reentry vehicle.
00:07:40 --> 00:07:42 They're partnering with Rhodium Scientific to
00:07:42 --> 00:07:44 explore how this vehicle could be used for
00:07:44 --> 00:07:47 microgravity research, potentially offering a
00:07:47 --> 00:07:49 valuable service for returning biomedical
00:07:49 --> 00:07:51 experiments safely to Earth from space.
00:07:52 --> 00:07:54 We all know the universe will eventually end,
00:07:54 --> 00:07:57 but how and when has been a subject of
00:07:57 --> 00:07:59 intense scientific debate. Now, fascinating
00:07:59 --> 00:08:01 new research from scientists at Radboud
00:08:01 --> 00:08:04 University suggests the universe's demise
00:08:04 --> 00:08:06 might arrive much sooner than previously
00:08:06 --> 00:08:08 calculated. Though we're still talking about
00:08:08 --> 00:08:11 an almost incomprehensible timescale, the
00:08:11 --> 00:08:14 research team, led by Heino Falca, along
00:08:14 --> 00:08:16 with colleagues Michael Wandrak and Walter
00:08:16 --> 00:08:19 Van Swigelkom, has dramatically revised
00:08:19 --> 00:08:22 estimates for cosmic longevity. According to
00:08:22 --> 00:08:24 their calculations, the final decay of the
00:08:24 --> 00:08:27 universe could occur in about 10 to the 78th
00:08:27 --> 00:08:30 power years. That's a one followed by 78
00:08:30 --> 00:08:32 zeros. While this represents a significant
00:08:32 --> 00:08:35 reduction from previous estimates, it's still
00:08:35 --> 00:08:37 billions upon billions of times the current
00:08:37 --> 00:08:40 age of our cosmos. As Falcke
00:08:40 --> 00:08:42 himself put it, the ultimate end of the
00:08:42 --> 00:08:45 universe comes much sooner than expected, but
00:08:45 --> 00:08:47 fortunately it still takes a very long time.
00:08:48 --> 00:08:50 What's particularly interesting about this
00:08:50 --> 00:08:52 research is how it builds upon Stephen
00:08:52 --> 00:08:54 Hawking's groundbreaking work from
00:08:54 --> 00:08:57 1975. Hawking theorized
00:08:57 --> 00:08:59 that black holes aren't completely black,
00:08:59 --> 00:09:01 they gradually emit tiny amounts of
00:09:01 --> 00:09:04 radiation, now known as Hawking radiation,
00:09:04 --> 00:09:07 over immensely long timescales. This process
00:09:07 --> 00:09:09 causes black holes to slowly evaporate and
00:09:09 --> 00:09:12 eventually disappear entirely. The Radboud
00:09:12 --> 00:09:14 team extended this principle to other dense
00:09:14 --> 00:09:17 cosmic objects, including neutron stars.
00:09:17 --> 00:09:19 Their surprising discovery was that the
00:09:19 --> 00:09:21 evaporation process is driven not just by
00:09:21 --> 00:09:24 mass, but by density. This led to some
00:09:24 --> 00:09:26 counterintuitive findings about decay
00:09:26 --> 00:09:29 timelines. For instance, despite
00:09:29 --> 00:09:31 their extreme gravitational pull and
00:09:31 --> 00:09:33 reputation as cosmic devourers, black
00:09:33 --> 00:09:36 holes share a similar decay timeline with
00:09:36 --> 00:09:38 neutron stars around 10 to the
00:09:38 --> 00:09:40 67th power years. That's
00:09:40 --> 00:09:42 significantly shorter than previous
00:09:42 --> 00:09:44 scientific estimates. The reason for this
00:09:44 --> 00:09:47 unexpected result is that black holes
00:09:47 --> 00:09:50 lacking a solid surface can partially
00:09:50 --> 00:09:52 reabsorb their emitted radiation, which
00:09:52 --> 00:09:54 actually slows the evaporation process.
00:09:55 --> 00:09:57 To put this in perspective, the researchers
00:09:57 --> 00:09:59 calculated that objects as small as our moon,
00:09:59 --> 00:10:02 or even a human, would take approximately
00:10:02 --> 00:10:05 10 to the 90th power years to
00:10:05 --> 00:10:08 evaporate through Hawking like radiation. Of
00:10:08 --> 00:10:10 course, other natural processes would end
00:10:10 --> 00:10:12 their existence long before this theoretical
00:10:12 --> 00:10:15 timeline played out. What makes this
00:10:15 --> 00:10:18 research particularly valuable beyond the
00:10:18 --> 00:10:21 cosmic doomsday predictions is how it helps
00:10:21 --> 00:10:24 bridge the gap between quantum mechanics and
00:10:24 --> 00:10:26 general relativity, two fundamental
00:10:26 --> 00:10:29 theories of physics that have proven
00:10:29 --> 00:10:32 notoriously difficult to reconcile. As co
00:10:32 --> 00:10:34 author Walter Van Swigelkom noted, by asking
00:10:34 --> 00:10:36 these kinds of questions and looking at
00:10:36 --> 00:10:38 extreme cases, we want to better understand
00:10:38 --> 00:10:41 the theory, and perhaps one day we unravel
00:10:41 --> 00:10:43 the mystery of Hawking radiation.
00:10:44 --> 00:10:46 While none of us need worry about witnessing
00:10:46 --> 00:10:49 the universe's final moments, this research
00:10:49 --> 00:10:51 provides valuable insight into the
00:10:51 --> 00:10:54 fundamental workings of our cosmos and the
00:10:54 --> 00:10:56 physical laws that govern everything from the
00:10:56 --> 00:10:58 smallest particles to to the largest
00:10:58 --> 00:11:01 structures in existence. It's a reminder that
00:11:01 --> 00:11:04 even in studying the end of everything, we
00:11:04 --> 00:11:06 continue to deepen our understanding of the
00:11:06 --> 00:11:07 universe we inhabit today.
00:11:08 --> 00:11:10 Have you ever wondered what it is that
00:11:10 --> 00:11:12 astronauts actually do all day on the iss?
00:11:13 --> 00:11:15 I'm sure some people think they spend the day
00:11:15 --> 00:11:18 looking out the window and admiring the view.
00:11:18 --> 00:11:21 Well, far from it. Let's take a look at what
00:11:21 --> 00:11:23 they did on Tuesday. This week as an example,
00:11:24 --> 00:11:26 the International Space Station continues to
00:11:26 --> 00:11:29 serve as humanity's premier orbital
00:11:29 --> 00:11:31 laboratory, with the Expedition 73
00:11:31 --> 00:11:34 crew currently engaged in a diverse array of
00:11:34 --> 00:11:37 scientific investigations. NASA
00:11:37 --> 00:11:39 astronauts Anne McClane, Nicole Ayers,
00:11:40 --> 00:11:42 and Johnny Kim have been particularly busy
00:11:42 --> 00:11:45 with biotechnology research. McClane
00:11:45 --> 00:11:47 donned a special biomonitor garment and
00:11:47 --> 00:11:49 headband as part of an experiment monitoring
00:11:49 --> 00:11:52 astronauts psychological responses before,
00:11:52 --> 00:11:55 during and after their missions. This
00:11:55 --> 00:11:57 research aims to assess how space travel
00:11:57 --> 00:12:00 affects heart health, crucial knowledge as we
00:12:00 --> 00:12:02 plan for longer duration missions beyond
00:12:02 --> 00:12:05 Earth orbit. Perhaps the most intriguing
00:12:05 --> 00:12:07 experiment currently underway involves DNA
00:12:07 --> 00:12:10 inspired nanomaterials. MacLaine and
00:12:10 --> 00:12:12 Ayres have been working in the life sciences
00:12:12 --> 00:12:15 glove box, mixing MRNA and protein
00:12:15 --> 00:12:17 solutions to produce special molecules formed
00:12:17 --> 00:12:20 by these nanomaterials. This research could
00:12:20 --> 00:12:22 lead to more cost effective in space
00:12:22 --> 00:12:24 production methods and potentially
00:12:24 --> 00:12:26 revolutionize targeted therapy delivery back
00:12:26 --> 00:12:28 on Earth, improving patient outcomes with
00:12:28 --> 00:12:31 fewer side effects. Fire safety in
00:12:31 --> 00:12:33 space represents another critical research
00:12:33 --> 00:12:36 area. Astronaut Johnny Kim spent the day
00:12:36 --> 00:12:38 installing hardware for the Solid Fuel
00:12:38 --> 00:12:40 Ignition and Extinction Experiment, which
00:12:40 --> 00:12:42 includes mist systems designed to extinguish
00:12:42 --> 00:12:45 flames in microgravity. He's also working
00:12:45 --> 00:12:47 with the Combustion Integrated Rack to better
00:12:47 --> 00:12:49 understand the fundamentals of how fire
00:12:49 --> 00:12:51 behaves when gravity isn't pulling flames
00:12:51 --> 00:12:54 upward. This research isn't merely
00:12:54 --> 00:12:56 academic. Understanding fire behavior and
00:12:56 --> 00:12:58 suppression methods in space is essential for
00:12:58 --> 00:13:01 crew safety on the ISS and future deep space
00:13:01 --> 00:13:04 missions. Meanwhile, JAXA
00:13:04 --> 00:13:07 astronaut and Station Commander Takuya Onishi
00:13:07 --> 00:13:10 has been focusing on similar fire safety work
00:13:10 --> 00:13:12 in the Japanese experiment module. He's been
00:13:12 --> 00:13:15 handling gas bottle exchanges in the Solid
00:13:15 --> 00:13:17 Combustion Experiment module and performing
00:13:17 --> 00:13:19 critical leak checks to ensure safe
00:13:19 --> 00:13:22 operations. Beyond scientific
00:13:22 --> 00:13:25 duties, Onishi has tackled orbital plumbing
00:13:25 --> 00:13:27 tasks, installing recycle tanks and
00:13:27 --> 00:13:30 configuring drain valves, the unglamorous but
00:13:30 --> 00:13:32 essential maintenance that keeps the station
00:13:32 --> 00:13:35 functioning. The station's three
00:13:35 --> 00:13:37 cosmonauts, Sergei Ryzhikov,
00:13:37 --> 00:13:40 Alexei Zubritsky and Kirill
00:13:40 --> 00:13:42 Peskov, have primarily focused on maintenance
00:13:42 --> 00:13:45 tasks in the Russian segment. Their work
00:13:45 --> 00:13:47 included removing cargo, replacing thermal
00:13:47 --> 00:13:50 sensors and verifying flow sensor
00:13:50 --> 00:13:52 installations. Peskov conducted an
00:13:52 --> 00:13:55 ethernet cables audit and worked on the
00:13:55 --> 00:13:57 intermodular ventilation system connecting
00:13:57 --> 00:13:59 the Russian and US modules. Critical
00:13:59 --> 00:14:01 infrastructure that ensures proper air
00:14:01 --> 00:14:04 circulation throughout the station. This
00:14:04 --> 00:14:07 blend of cutting edge research and meticulous
00:14:07 --> 00:14:09 maintenance highlights the dual nature of the
00:14:09 --> 00:14:11 ISS as both a world class laboratory
00:14:11 --> 00:14:14 and a habitable outpost in the harsh
00:14:14 --> 00:14:17 environment of low Earth orbit. As the crew
00:14:17 --> 00:14:19 continues their six month mission, these
00:14:19 --> 00:14:21 experiments will provide valuable data for
00:14:21 --> 00:14:23 scientific advancement and support humanity's
00:14:23 --> 00:14:26 ongoing space exploration efforts. I
00:14:26 --> 00:14:28 think you'll agree there wasn't much time for
00:14:28 --> 00:14:30 just sitting and looking at the view.
00:14:32 --> 00:14:34 In a significant first for Europe's satellite
00:14:34 --> 00:14:36 navigation system, Galileo satellite
00:14:36 --> 00:14:39 GSAT0104 has been officially
00:14:39 --> 00:14:41 decommissioned after 12 years of service.
00:14:42 --> 00:14:44 This marks a historic milestone as the first
00:14:44 --> 00:14:46 satellite in the Galileo constellation to be
00:14:46 --> 00:14:49 retired, setting precedent for responsible
00:14:49 --> 00:14:51 space operations in the coming decades.
00:14:51 --> 00:14:54 GSAT 0104 holds a special
00:14:54 --> 00:14:57 place in European space history. Launched on
00:14:57 --> 00:15:00 October 12, 2012, it was the fourth and
00:15:00 --> 00:15:02 final in orbit validation satellite for the
00:15:02 --> 00:15:05 Galileo program. Most notably, it
00:15:05 --> 00:15:07 participated in a watershed moment on March
00:15:07 --> 00:15:10 12, 2013, when, alongside its
00:15:10 --> 00:15:13 fellow satellites, it enabled the very first
00:15:13 --> 00:15:15 position fix by Europe's independent
00:15:15 --> 00:15:18 satellite navigation system M. For a
00:15:18 --> 00:15:20 constellation like Galileo, which serves as
00:15:20 --> 00:15:21 critical public infrastructure intended to
00:15:21 --> 00:15:24 provide uninterrupted service over decades,
00:15:24 --> 00:15:26 decommissioning activities are as essential
00:15:26 --> 00:15:29 as launches. The retirement process isn't
00:15:29 --> 00:15:31 just about making space safer, it's literally
00:15:31 --> 00:15:34 about making space for new satellites, as the
00:15:34 --> 00:15:35 constellation requires continuous
00:15:35 --> 00:15:38 replenishment. The decision to retire
00:15:38 --> 00:15:41 Gisatsura 104 came after careful
00:15:41 --> 00:15:43 deliberation by a board chaired by the EU
00:15:43 --> 00:15:46 Agency for the Space Program, with
00:15:46 --> 00:15:48 participation from the European Space Agency
00:15:48 --> 00:15:50 and European Commission.
00:15:50 --> 00:15:53 Decommissioning activities began in March
00:15:53 --> 00:15:56 2024 and were completed last month
00:15:56 --> 00:15:59 in April 2025. What's
00:15:59 --> 00:16:00 particularly notable about this
00:16:00 --> 00:16:03 decommissioning is how it aligns with ESA's
00:16:03 --> 00:16:05 commitment to sustainability in space. With
00:16:05 --> 00:16:07 the growing concern about space debris
00:16:07 --> 00:16:10 threatening current and future missions, ESA
00:16:10 --> 00:16:12 has set an ambitious goal of net zero space
00:16:12 --> 00:16:15 pollution for new missions by 2030. For
00:16:15 --> 00:16:18 G Satsaro 104 engineers
00:16:18 --> 00:16:20 used remaining propellant reserves to place
00:16:20 --> 00:16:22 it 700 km above the operational
00:16:22 --> 00:16:25 Galileo constellation in what's known as a
00:16:25 --> 00:16:28 graveyard orbit. This exceptionally stable
00:16:28 --> 00:16:30 disposal orbit is designed to remain
00:16:30 --> 00:16:33 undisturbed for hundreds of years, ensuring
00:16:33 --> 00:16:35 it won't interfere with active satellites.
00:16:36 --> 00:16:38 The satellite was then completely passivated
00:16:38 --> 00:16:40 by removing all internal energy sources,
00:16:40 --> 00:16:43 including battery charge. This approach
00:16:43 --> 00:16:46 represents the standard disposal strategy for
00:16:46 --> 00:16:48 satellites in medium earth and geostationary
00:16:48 --> 00:16:51 orbits, where Earth reentry is generally not
00:16:51 --> 00:16:54 feasible. Future decommissioned Galileo
00:16:54 --> 00:16:55 satellites will be disposed at slightly
00:16:55 --> 00:16:58 different altitudes to maintain safe distance
00:16:58 --> 00:17:00 between them. The Galileo program
00:17:00 --> 00:17:03 continues to thrive despite this retirement.
00:17:03 --> 00:17:05 The constellation currently provides the same
00:17:05 --> 00:17:08 level of performance with active satellites
00:17:08 --> 00:17:11 in all prime slots, plus three active
00:17:11 --> 00:17:13 spares. Six more first generation
00:17:13 --> 00:17:16 satellites are ready for launch and 12 second
00:17:16 --> 00:17:18 generation satellites are in development.
00:17:18 --> 00:17:21 This decommissioning gives the Galileo
00:17:21 --> 00:17:23 program valuable experience that will prove
00:17:23 --> 00:17:26 crucial as more satellites reach the end of
00:17:26 --> 00:17:28 their operational lives in the coming years.
00:17:29 --> 00:17:31 The remaining three original in orbit
00:17:31 --> 00:17:34 validation satellites have exceeded their
00:17:34 --> 00:17:36 design lifetime but continue to provide
00:17:37 --> 00:17:39 excellent navigation performance. They'll be
00:17:39 --> 00:17:42 reviewed again in October 2025 to determine
00:17:42 --> 00:17:44 if they should continue operating or join
00:17:44 --> 00:17:46 GSAT 0104 in retirement.
00:17:47 --> 00:17:50 Galileo has become the world's most precise
00:17:50 --> 00:17:53 satellite navigation system, serving over
00:17:53 --> 00:17:56 4 billion smartphone users globally since
00:17:56 --> 00:17:58 entering open service in 2017.
00:17:59 --> 00:18:01 Beyond consumer applications, it's making a
00:18:01 --> 00:18:03 difference across rail, maritime,
00:18:03 --> 00:18:05 agriculture, financial timing services and
00:18:05 --> 00:18:08 rescue operations. A testament to Europe's
00:18:08 --> 00:18:10 commitment to space technology leadership.
00:18:11 --> 00:18:14 Finally, today, when we think about the dawn
00:18:14 --> 00:18:16 of life on Earth, it's easy to imagine a
00:18:16 --> 00:18:19 process that took eons. A, slow gradual
00:18:19 --> 00:18:22 emergence from complex chemicals to the first
00:18:22 --> 00:18:25 self replicating organisms. But
00:18:25 --> 00:18:27 fascinating new research suggests that life
00:18:27 --> 00:18:29 might have gotten its start with surprising
00:18:29 --> 00:18:31 speed after our planet formed, raising
00:18:31 --> 00:18:33 profound questions about the potential for
00:18:33 --> 00:18:36 life elsewhere in the universe. A recent
00:18:36 --> 00:18:38 paper by American astronomer David Kipping,
00:18:38 --> 00:18:41 titled strong evidence that abiogenesis is
00:18:41 --> 00:18:44 a rapid process on Earth analogues offers
00:18:44 --> 00:18:46 compelling analysis of when life first
00:18:46 --> 00:18:49 emerged on our planet. The evidence of
00:18:49 --> 00:18:51 ancient life stretches remarkably far back,
00:18:51 --> 00:18:54 possibly as far as 4.2 billion years ago.
00:18:54 --> 00:18:56 Astonishingly close to Earth's formation
00:18:56 --> 00:18:59 around 4.5 billion years ago. The timeline
00:18:59 --> 00:19:01 is truly remarkable when you consider the
00:19:01 --> 00:19:04 evidence. Fossilized mats of cyanobacteria
00:19:04 --> 00:19:07 known as stromatolites, date back 3.7 billion
00:19:07 --> 00:19:09 years. Rocks from Australia show isotope
00:19:09 --> 00:19:11 patterns consistent with biological activity
00:19:11 --> 00:19:14 dating to 4.1 billion years ago. And
00:19:14 --> 00:19:16 some ancient Canadian rocks contain tiny
00:19:16 --> 00:19:18 filament like structures that may represent
00:19:18 --> 00:19:21 biological remains from 4.28 billion years
00:19:21 --> 00:19:24 ago. Scientists trying to understand
00:19:24 --> 00:19:26 life's earliest journey often study what's
00:19:26 --> 00:19:28 called luca, the last universal common
00:19:28 --> 00:19:31 ancestor. This hypothetical organism gave
00:19:31 --> 00:19:34 rise to all forms of life on Earth. Bacteria,
00:19:34 --> 00:19:37 archaea, and eventually complex cells like
00:19:37 --> 00:19:39 our own. Current research places LUCA's
00:19:39 --> 00:19:41 existence at least 3.6 billion years ago,
00:19:42 --> 00:19:45 possibly as far back as 4.3 billion years.
00:19:45 --> 00:19:47 What Kiping's analysis reveals is truly
00:19:47 --> 00:19:50 significant. Using Bayesian statistical
00:19:50 --> 00:19:52 methods to evaluate the evidence, he
00:19:52 --> 00:19:55 calculates 13, 1 odds in favor of rapid
00:19:55 --> 00:19:58 abiogenesis, the spontaneous emergence of
00:19:58 --> 00:20:00 life from non living matter. This crosses the
00:20:00 --> 00:20:03 threshold of 10 to 1 that scientists consider
00:20:03 --> 00:20:05 strong evidence, making this the first time
00:20:05 --> 00:20:07 we have formal statistical support for the
00:20:07 --> 00:20:10 hypothesis that life rapidly emerges under
00:20:10 --> 00:20:13 Earth like conditions. This
00:20:13 --> 00:20:15 finding addresses a long standing concern
00:20:15 --> 00:20:18 about what's called the weak anthropic
00:20:18 --> 00:20:20 principle, the idea that we might be
00:20:20 --> 00:20:22 observing an atypically quick emergence of
00:20:22 --> 00:20:25 life simply because if life hadn't appeared
00:20:25 --> 00:20:27 early, we wouldn't be here to observe it.
00:20:27 --> 00:20:29 Kipping's odds ratio provides a more
00:20:29 --> 00:20:31 objective measure supporting rapid
00:20:31 --> 00:20:34 abiogenesis. But here's the crucial caveat,
00:20:34 --> 00:20:37 and it's one Kipping emphasizes. This doesn't
00:20:37 --> 00:20:39 mean life is common throughout the universe.
00:20:39 --> 00:20:41 Earth like conditions themselves may be
00:20:41 --> 00:20:44 exceedingly rare. As he writes, our
00:20:44 --> 00:20:46 result does not establish that life is
00:20:46 --> 00:20:48 common, since Earth's conditions could be
00:20:48 --> 00:20:51 incredibly rare. There's also an intriguing
00:20:51 --> 00:20:53 tension within these findings. If life
00:20:53 --> 00:20:56 started so quickly, why did it take roughly 4
00:20:56 --> 00:20:58 billion more years for intelligent life like
00:20:58 --> 00:21:01 us to evolve? With our sun expected to make
00:21:01 --> 00:21:03 Earth uninhabitable in about 900 million
00:21:03 --> 00:21:06 years as it grows 10% more luminous,
00:21:06 --> 00:21:08 there seems to be a narrow window for
00:21:08 --> 00:21:10 intelligence to emerge before a planet
00:21:10 --> 00:21:13 becomes too hostile. The most humbling aspect
00:21:13 --> 00:21:15 of this research remains our limited sample
00:21:15 --> 00:21:17 size. We still have only one confirmed
00:21:17 --> 00:21:20 example of life in the universe Earth.
00:21:20 --> 00:21:23 Finding evidence of past or present life
00:21:23 --> 00:21:25 elsewhere in our solar system, whether on
00:21:25 --> 00:21:28 Mars, an ocean moon like Europa, or or
00:21:28 --> 00:21:30 conclusively detecting biosignatures on an
00:21:30 --> 00:21:32 exoplanet would revolutionize our
00:21:32 --> 00:21:35 understanding. As Kipping concludes,
00:21:36 --> 00:21:38 our next task is clearly to look out and
00:21:38 --> 00:21:41 address this how common are conditions
00:21:41 --> 00:21:44 analogous to those of Earth? That search
00:21:44 --> 00:21:46 continues with each new discovery, bringing
00:21:46 --> 00:21:48 us closer to answering one of humanity's most
00:21:48 --> 00:21:51 profound questions Are we alone in the
00:21:51 --> 00:21:51 universe?
00:21:53 --> 00:21:55 And that brings us to the end of another
00:21:55 --> 00:21:57 episode of Astronomy Daily, where today
00:21:57 --> 00:22:00 we've traveled from the Moon's surface to the
00:22:00 --> 00:22:02 ultimate fate of the universe, with several
00:22:02 --> 00:22:04 fascinating stops in between.
00:22:05 --> 00:22:07 We began with Intuitive Machine's Lunar
00:22:07 --> 00:22:10 Lander mishap, where altimeter problems and
00:22:10 --> 00:22:12 challenging lighting conditions cause their
00:22:12 --> 00:22:14 Nova C lander to topple over in March.
00:22:15 --> 00:22:17 Despite this setback, the company is
00:22:17 --> 00:22:19 implementing important changes for future
00:22:19 --> 00:22:21 missions while diversifying their space
00:22:21 --> 00:22:24 business beyond lunar exploration. We
00:22:24 --> 00:22:26 then ventured to the far reaches of time
00:22:26 --> 00:22:29 itself, with research from Radboud university
00:22:29 --> 00:22:32 suggesting the universe's end may arrive in
00:22:32 --> 00:22:34 about 10 to the power of 78 years,
00:22:35 --> 00:22:38 still an incomprehensibly distant future, but
00:22:38 --> 00:22:40 significantly sooner than previous estimates
00:22:40 --> 00:22:43 of 10 to the power of 1 years.
00:22:44 --> 00:22:46 Up on the International Space Station
00:22:47 --> 00:22:49 expedition's 73 crew members have been been
00:22:49 --> 00:22:52 advancing biotechnology research and
00:22:52 --> 00:22:55 studying fire behavior in microgravity,
00:22:55 --> 00:22:57 crucial work that improves our understanding
00:22:57 --> 00:23:00 of both space habitation and life on Earth.
00:23:01 --> 00:23:03 We also witnessed a historical first with the
00:23:03 --> 00:23:06 decommissioning of Galileo satellite GSAT
00:23:06 --> 00:23:08 0104 after 12 years of
00:23:08 --> 00:23:11 service. This pioneering event demonstrates
00:23:11 --> 00:23:13 Europe's commitment to sustainable space
00:23:13 --> 00:23:16 operations and sets a responsible example for
00:23:16 --> 00:23:18 commercial constellation management. Perhaps
00:23:18 --> 00:23:20 most thought provoking was our look at new
00:23:20 --> 00:23:23 evidence suggesting life may have emerged
00:23:23 --> 00:23:26 with surprising speed after Earth formed.
00:23:26 --> 00:23:29 David Kipping's analysis showing strong
00:23:29 --> 00:23:31 statistical support for rapid abiogenesis
00:23:32 --> 00:23:34 raises profound questions about the potential
00:23:34 --> 00:23:37 for life elsewhere. Even as we acknowledge
00:23:37 --> 00:23:39 the rarity of Earth like conditions, these
00:23:39 --> 00:23:41 stories remind us that space exploration
00:23:41 --> 00:23:43 exploration continues to challenge our
00:23:43 --> 00:23:45 understanding of the universe and our place
00:23:45 --> 00:23:48 within it. Each discovery brings new
00:23:48 --> 00:23:50 questions, and that's what makes astronomy so
00:23:50 --> 00:23:52 endlessly fascinating. If you've enjoyed
00:23:52 --> 00:23:54 today's episode, I invite you to visit our
00:23:54 --> 00:23:57 website at astronomydaily IO where you
00:23:57 --> 00:24:00 can sign up for our free daily newsletter and
00:24:00 --> 00:24:02 catch up on all the latest space and
00:24:02 --> 00:24:04 astronomy news with our constantly updating
00:24:04 --> 00:24:07 Space News feed. You can also subscribe to
00:24:07 --> 00:24:10 Astronomy Daily on on Apple Podcasts,
00:24:10 --> 00:24:13 Spotify, YouTubeMusic, or wherever you get
00:24:13 --> 00:24:15 your podcasts. To ensure you never miss an
00:24:15 --> 00:24:18 episode, this is Anna for Astronomy Daily.
00:24:18 --> 00:24:20 Thank you for listening, and until next time,
00:24:20 --> 00:24:21 keep looking up.