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In this episode of SpaceTime, we delve into the mysterious absence of river deltas on Titan, Saturn’s largest moon. Despite having rivers of methane and ethane, a new study published in the Journal of Geophysical Research Planets reveals that Titan is largely devoid of these geological features, raising intriguing questions about its unique processes and history. We discuss the implications of this finding and what it means for our understanding of Titan's climate and geological past.

Volcanic History of Mars

Next, we explore groundbreaking research from NASA's Perseverance rover, which has uncovered a diverse array of iron-rich volcanic rocks in Jezero Crater. This study, reported in Science Advances, provides fresh insights into Mars's geological history and its potential to have supported ancient life. The findings reveal complex volcanic processes that may have occurred on the Red Planet, enhancing our understanding of its habitability.

Rare Earth Metals in Exoplanet Atmosphere

Finally, we celebrate the discovery of rare Earth metals in the atmosphere of Kelt 9b, one of the hottest known exoplanets. Astronomers have detected vaporized elements such as sodium, magnesium, and the rare Earth metals scandium and yttrium, marking a significant milestone in exoplanet research. This discovery opens new avenues for understanding the atmospheres of distant worlds and their unique compositions.

www.spacetimewithstuartgary.com (https://www.spacetimewithstuartgary.com/)

✍️ Episode References

Journal of Geophysical Research Planets

https://agupubs.onlinelibrary.wiley.com/journal/21699356 (https://agupubs.onlinelibrary.wiley.com/journal/21699356)

Science Advances

https://www.science.org/journal/sciadv (https://www.science.org/journal/sciadv)

Astronomy and Astrophysics

https://www.aanda.org/ (https://www.aanda.org/)

NASA

https://www.nasa.gov/ (https://www.nasa.gov/)

Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support (https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) .

00:00 This is space Time Series 28, Episode 52 for broadcast on 30 April 2025

00:46 Scientists are looking for Titan's missing river deltas

06:02 NASA's Mars Perseverance Rover is analyzing Martian volcanic rocks

10:17 Astronomers have discovered rare Earth metals in the atmosphere of a hot exoplanet

17:58 People who were conceived during colder seasons store fat differently, study finds

20:25 YouTube is celebrating its 20th birthday with some interesting stats

22:16 Google to launch Android 16 three or four months earlier than Apple's iOS

Episode link: https://play.headliner.app/episode/26878967?utm_source=youtube

In this episode of Astronomy Daily, join host Anna as she navigates through the latest cosmic developments, from NASA's ambitious Roman Space Telescope to groundbreaking advancements in satellite technology. This episode is filled with stellar news that will inspire your curiosity about the universe.

Highlights:

- NASA's Roman Space Telescope: Discover the exciting designs for the Nancy Chris Roman Space Telescope, set to launch in 2027. With a field of view 100 times greater than Hubble, this mission aims to unravel the mysteries of dark energy and dark matter while capturing over a billion galaxies in unprecedented detail.

- Amazon's Project Kuiper Launch: Learn about Amazon's successful launch of 27 Project Kuiper satellites, marking a significant step in the race for satellite Internet. With plans for over 3,200 satellites, Amazon aims to compete with SpaceX's Starlink network and enhance global broadband coverage.

- ESA's Biomass Satellite: Explore the European Space Agency's groundbreaking biomass satellite, designed to study Earth's forests and their role in the carbon cycle. This mission promises to provide vital data on carbon storage and help mitigate climate change impacts.

- China's Proposed Spaceport in Malaysia: Delve into China's plans for its first overseas launch site in Malaysia, which could revolutionize equatorial launches and enhance China's launch capabilities. This project holds significant economic and geopolitical implications for the region.

- Astronaut Don Pettit's 70th Birthday: Celebrate the remarkable return of NASA astronaut Don Pettit, who marked his 70th birthday with a dramatic descent back to Earth after 220 days aboard the ISS. Hear his reflections on aging, space travel, and the future of human exploration.

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 - This week's Astronomy Daily features a stellar lineup of space news

00:36 - The Nancy Grace Roman Space Telescope is scheduled to launch in 2027

03:08 - Amazon successfully launched 27 Project Kuiper broadband satellites on April 28

05:51 - European Space Agency has successfully launched its groundbreaking biomass satellite

08:52 - China is exploring the establishment of its first overseas launch site with a proposed spaceport

11:59 - NASA astronaut Don Pettit celebrates his 70th birthday with a space return

✍️ Episode References

NASA's Roman Space Telescope

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

Amazon's Project Kuiper

[Amazon]( https://www.amazon.com/ (https://www.amazon.com/) )

ESA's Biomass Satellite

[European Space Agency]( https://www.esa.int/ (https://www.esa.int/) )

China's Spaceport in Malaysia

[China Great Wall Industry Corporation]( http://www.cgwic.com/ (http://www.cgwic.com/) )

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/26856708?utm_source=youtube

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In this episode of SpaceTime, we explore the intriguing phenomena of coronal holes on the Sun and their significant impact on space weather. A new study published in Scientific Reports reveals how these magnetic windows are launching supersonic solar wind streams into the heliosphere, providing crucial insights for future solar monitoring missions like ESA's Vigil. We discuss the dangers posed by solar storms to Earth's infrastructure and how advanced forecasting can mitigate these risks.

Watery Past of Mars

Next, we uncover exciting findings from NASA's Perseverance rover, which suggest that Mars once had widespread water, as indicated by the presence of calcium sulfate minerals. Utilizing innovative X-ray backscattered diffraction techniques, scientists are piecing together the planet's geological history and its potential for past life.

NASA's Lucy Mission Success

Finally, we celebrate the successful flyby of the main belt asteroid Donaldjohanson by NASA's Lucy spacecraft. Captured images reveal its unique potato-like shape and complex geology, shedding light on the building blocks of our solar system. With future encounters on the horizon, Lucy aims to enhance our understanding of planetary formation.

www.spacetimewithstuartgary.com (https://www.spacetimewithstuartgary.com/)

✍️ Episode References

Scientific Reports

https://www.nature.com/srep (https://www.nature.com/srep)

NASA

https://www.nasa.gov/ (https://www.nasa.gov/)

Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support (https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) .

Episode link: https://play.headliner.app/episode/26837806?utm_source=youtube

In this episode of Astronomy Daily, join host Steve Dunkley and his witty digital companion Hallie as they explore the latest developments in space exploration and lunar research. From exciting lunar sample tours to innovative missions targeting Saturn's moon Titan, this episode is packed with cosmic news that will expand your horizons.

Highlights:

- Chang'e 5 Sample Tour: Discover the latest updates on China's Chang'e 5 lunar samples, which are set to tour universities across the United States. Learn about the international collaboration that allows institutions like Brown University and Stony Brook University to study these precious lunar materials.

- NASA's Dragonfly Mission: Dive into the details of NASA's groundbreaking Dragonfly mission, designed to explore Titan's potential for hosting life. With its recent critical design review passed, this nuclear-powered rotorcraft is gearing up for a launch that promises to revolutionize our understanding of extraterrestrial environments.

- Firefly Aerospace's Latest Launch: Get the scoop on Firefly Aerospace's upcoming Alpha rocket launch, carrying the Lockheed Martin LM400 satellite bus into polar orbit. This mission marks a significant step in Firefly's partnership with Lockheed Martin and showcases the capabilities of their innovative satellite technology.

- Insights into Lunar Exploration: Explore the implications of China's lunar sample sharing and its impact on international space cooperation, amid ongoing US-China trade tensions. Understand how these collaborations could shape the future of lunar exploration and scientific discovery.

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 Steve signing off. Until next time, keep looking up and stay curious about the wonders of our universe.

00:00 - Welcome to Astronomy Daily with Steve and Hallie

01:17 - Today's stories include the latest chapter for the Chang'e 5 samples

02:28 - China has accepted international applications to borrow moon samples from its Changi 5 mission

07:12 - NASA's $3.35 billion Dragonfly mission passes critical design review

15:58 - Hallie will be leaving for the Astronomy Daily virtual studio soon ✍️ Episode References

Chang'e 5 Lunar Samples

[China National Space Administration]( http://www.cnsa.gov.cn/ (http://www.cnsa.gov.cn/) )

NASA's Dragonfly Mission

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

Firefly Aerospace Launch Details

[Firefly Aerospace]( https://firefly.com/ (https://firefly.com/) )

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/26827548?utm_source=youtube

Space Nuts Episode 516: Angular Momentum, Cosmic Inflation, and the Infinite Universe

In this thought-provoking episode of Space Nuts, host Heidi Campo steps in for Andrew Dunkley, joined by the ever-knowledgeable Professor Fred Watson. Together, they tackle an array of fascinating listener questions that delve into the complexities of angular momentum, the nature of cosmic inflation, and the mysteries surrounding the universe's finiteness or infiniteness.

Episode Highlights:

- Angular Momentum Explained: Heidi and Fred kick off the episode by addressing a question from Buddy about angular momentum. They discuss how angular momentum affects spinning objects, the implications of expansion, and the intriguing concept of a potentially spinning universe.

- Time Dilation and Cosmic Inflation: Scott from Sydney poses a compelling question regarding time dilation during the universe's hyperinflation period. Fred elaborates on how time behaves under extreme gravitational conditions and the significance of inflation in explaining the universe's homogeneity.

- Is the Universe Finite or Infinite? The episode features a delightful audio question from young Enrique and his father Philip, exploring whether the universe is finite or infinite. Fred explains the concept of cosmic horizons and the challenges faced in determining the universe's boundaries.

- Temperature Control on the ISS: Kevin from Melbourne asks about the temperature inside the International Space Station (ISS) and how it varies with sunlight exposure. Heidi and Fred discuss the engineering marvels that maintain a livable environment for astronauts, including the challenges of thermal regulation in space.

For more Space Nuts, including our continually updating newsfeed and to listen to all our episodes, visit our website. (https://www.spacenutspodcast.com/) Follow us on social media at SpaceNutsPod on Facebook, X, YouTube Music Music, Tumblr, Instagram, and TikTok. We love engaging with our community, so be sure to drop us a message or comment on your favorite platform.

If you’d like to help support Space Nuts and join our growing family of insiders for commercial-free episodes and more, visit spacenutspodcast.com/about (https://www.spacenutspodcast.com/about)

Stay curious, keep looking up, and join us next time for more stellar insights and cosmic wonders. Until then, clear skies and happy stargazing.

(00:00) Welcome to Space Nuts with Heidi Campo and Fred Watson

(01:20) Discussion on angular momentum and its effects

(15:00) Exploring time dilation and cosmic inflation

(25:30) Is the universe finite or infinite?

(35:00) Temperature control aboard the ISS

For the commercial-free versions of Space Nuts, join us on Patreon, Supercast, Apple Podcasts, or become a supporter here: https://www.spreaker.com/podcast/space-nuts-astronomy-insights-cosmic-discoveries--2631155/support (https://www.spreaker.com/podcast/space-nuts-astronomy-insights-cosmic-discoveries--2631155/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) .

Episode link: https://play.headliner.app/episode/26820528?utm_source=youtube

In this episode of Astronomy Daily, join host Anna as she uncovers a wealth of groundbreaking discoveries that are reshaping our understanding of the universe. From the potential tripling of known satellite galaxies to exciting lunar water revelations, this episode is filled with cosmic insights that will spark your imagination.

Highlights:

- Vera Rubin Observatory's Galactic Expansion: Dive into the findings from the Vera Rubin Observatory, which could soon triple the known satellite galaxies orbiting our Milky Way. Learn how sophisticated simulations predict the detection of up to 119 new galactic companions, providing crucial insights into galaxy formation and evolution.

- Lunar Water Creation: Explore NASA's groundbreaking research suggesting that the Sun may be creating water on the Moon's surface. This revelation could significantly impact future lunar missions, making water a more accessible resource for astronauts.

- Atomic Clock Ensemble in Space: Discover the latest milestone in precision timekeeping as the Atomic Clock Ensemble is successfully installed on the International Space Station. This advanced facility promises to redefine our understanding of time and test Einstein's theory of general relativity.

- Viewing Sirius: Get tips on how to observe Sirius, the brightest star in the night sky, as it dazzles spring stargazers with its spectacular light show. Learn about the unique scintillation effect that creates a prismatic display of colors.

- The Mystery of Meteor Showers: Unravel the enigma of unpredictable meteor showers as new research reveals how the Sun's subtle wobble affects meteoroid streams. Understand why some showers appear suddenly and vanish for decades, all due to cosmic choreography.

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 - Vera Rubin Observatory's satellite galaxy discoveries

10:30 - Lunar water creation by the Sun

17:00 - Installation of the Atomic Clock Ensemble in Space

22:15 - Viewing tips for Sirius

27:30 - The mystery of meteor shower unpredictability

✍️ Episode References

Vera Rubin Observatory

[Vera Rubin Observatory]( https://www.vera-rubin-observatory.org (https://www.vera-rubin-observatory.org/) )

Lunar Water Research

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

Atomic Clock Ensemble

[European Space Agency]( https://www.esa.int (https://www.esa.int/) )

Sirius Viewing Tips

[Astronomy Magazine]( https://www.astronomy.com (https://www.astronomy.com/) )

Meteor Shower Research

[SETI Institute]( https://www.seti.org (https://www.seti.org/) )

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/26806645?utm_source=youtube