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Exploring Theia, Near-Earth Asteroids, and Enceladus

In this exciting episode of Space Nuts , hosts Andrew Dunkley and Professor Fred Watson dive into a wealth of astronomical discoveries and insights. From new revelations about the ancient collision between Earth and Theia to the astounding discovery of 40,000 near-Earth asteroids, this episode is packed with cosmic revelations that will spark your curiosity about the universe.

Episode Highlights:

- Theia and Earth's Relationship: Andrew and Fred discuss groundbreaking research from the Max Planck Institute that redefines our understanding of Theia, the protoplanet that collided with Earth. They explore how isotopic similarities suggest Theia was not just a random object, but likely a companion planet in the early solar system.

- 40,000 Near-Earth Asteroids: The hosts celebrate the milestone of 40,000 discovered near-Earth asteroids, discussing the implications for planetary defense and the importance of monitoring potentially hazardous objects that could pose a threat to Earth.

- Life on Enceladus: A thrilling discussion emerges around the latest findings from the Cassini mission, revealing new organic compounds in the icy plumes of Enceladus. Andrew and Fred ponder the exciting possibility of life existing in the subsurface ocean of this intriguing moon of Saturn.

- Updates on Comet 3I Atlas: The episode wraps up with an update on the interstellar comet 3I Atlas, including stunning new images captured from Mars. The hosts discuss the significance of these observations and what they might reveal about the comet's characteristics as it continues its journey through our solar system.

For more Space Nuts, including our continuously 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.

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

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Episode link: https://play.headliner.app/episode/30340531?utm_source=youtube

In this episode of SpaceTime , we delve into the latest discoveries and challenges in space exploration and Earth science.

Tracking Interstellar Comet 3I Atlas from Mars

The European Space Agency has successfully monitored interstellar comet 3I Atlas from its ExoMars Trace Gas Orbiter, significantly improving the accuracy of its predicted trajectory by a factor of ten. The comet, which travels at speeds of up to 250,000 km/h, was observed from a unique vantage point, allowing astronomers to refine its path through our solar system. This remarkable achievement underscores the importance of multi-location observations in planetary defense efforts.

Geomagnetic Superstorm Ganon's Impact on Earth's Plasma Sphere

A recent study reveals how the geomagnetic superstorm Ganon dramatically compressed Earth's plasmasphere, reducing its size to just a fifth of its normal extent. This event, which occurred in May 2024, provides crucial insights into the effects of extreme space weather on our planet's protective layers. The findings will enhance solar storm forecasts and help safeguard satellites and communication systems during such events.

Delays for the Dream Chaser Spaceplane

Sierra Space's Dream Chaser spaceplane faces further delays, now expected to launch its first orbital flight in approximately a year. Originally designed for crew transport, the spacecraft is now slated for resupply missions to the International Space Station. Despite setbacks, recent tests have demonstrated its systems' readiness for future operations, although challenges remain as the ISS's operational life nears its end.

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

✍️ Episode References

Earth Planets and Space Journal

Journal of the American Chemical Society

NASA Reports

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(00:00:00) Astronomy Daily podcast features the latest news from across the cosmos

(00:00:35) SpaceX scrubbed the launch of their Transporter 15 mission on Wednesday

(00:02:45) SpaceX scrubbed its B1062 booster due to unspecified issue

(00:04:26) Scientists used data from a spacecraft orbiting Mars to predict comet's path

(00:05:42) Improved trajectory means telescopes and other spacecraft can track comet with greater accuracy

(00:07:57) NASA's Nancy Grace Roman Space Telescope is scheduled for launch in 2027

(00:10:14) NASA astronaut Chris Williams and two cosmonauts set for Thanksgiving mission

(00:11:09) South Korea's homegrown Nuri rocket successfully launched on November 26th

(00:12:13) Astronomy Daily features the best of what's happening in space today

In this episode of Astronomy Daily, hosts Avery and Anna bring you the latest cosmic news, including a last-minute launch scrub for SpaceX's Transporter 15 mission, innovative tracking of interstellar visitors using Mars data, and exciting updates about NASA's upcoming Roman telescope. They also discuss a Thanksgiving Day launch to the International Space Station and a successful flight of South Korea's Nuri rocket. Tune in for an insightful journey through the universe!

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This episode includes AI-generated content.

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(00:00:00) Cosmic Speedsters: Unravelling Our Solar System's Surprising Velocity and Enceladus' Organic Secrets

(00:00:46) Our solar system is moving faster than expected

(00:04:38) Organic molecules discovered erupting from Saturn’s moon Enceladus

(00:08:29) A new satellite launched to study Earth’s oceans

(00:13:49) The Science Report

(00:15:52) Alex on Tech

In this episode of SpaceTime , we uncover groundbreaking insights into Earth's mysteries and the cosmos beyond.

Mysterious Structures in Earth's Mantle

A new study reveals that enigmatic structures within Earth's mantle may hold vital clues about why our planet evolved the conditions necessary for life. These massive formations, known as large low shear velocity provinces and ultra low velocity zones, reside at the boundary between the mantle and outer core, approximately 2,900 kilometres beneath the surface. The research suggests these anomalies could be remnants of Earth's formative processes, providing a deeper understanding of how elements from the core influenced the planet's cooling, volcanic activity, and atmospheric evolution, ultimately setting Earth apart from Venus and Mars.

Unprecedented View of the Milky Way

Astronomers have achieved a remarkable new perspective of our home galaxy, the Milky Way, with the largest low-frequency radio image ever assembled. This extensive survey, conducted using the Murchison Wide Field Array radio telescope in Western Australia, captures the intricate birth, evolution, and demise of stars across the southern hemisphere. The new image, which boasts double the resolution and tenfold sensitivity compared to previous observations, offers valuable insights into stellar interactions and the cosmic landscape, revealing patterns in star formation and supernova remnants.

Successful Return of Stranded Taikonauts

In a significant development, the three Chinese taikonauts stranded in orbit after their Shenzhou 20 spacecraft was struck by space debris have safely returned to Earth aboard the Shenzhou 21 capsule. The crew's return marks the end of a six-month mission at the Tiangong space station, with their extended stay setting a new record for the longest duration in space for Chinese astronauts. The episode highlights the challenges of space travel and the rapid response by Beijing to ensure crew safety.

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

✍️ Episode References

Nature Geoscience

Publications of the Astronomical Society of Australia

New England Journal of Medicine

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