(00:00:00) Lunar Water Disparities Explored, Asteroid 2024 YR4's Moonbound Journey

(00:00:46) Lunar Water Differences

(00:03:47) Asteroid 2024 YR4: From Earth Threat to Lunar Target

(00:06:33) Singing Stars and Galactic History

(00:18:56) The Science Report

(00:25:11) Show Wrap

SpaceTime Series 28 Episode 45

The Astronomy, Space and Science News Podcast

Uncovering Lunar Water Discrepancies, Asteroid 2024 YR4's Moon Targeting, and Stellar Seismology Insights

In this episode of SpaceTime, we delve into the intriguing findings from China's Chang'e 6 sample return mission, which reveal that the Moon's far side is significantly drier than its near side. This discovery sheds light on the geochemical differences between the two hemispheres and offers fresh perspectives on lunar evolution and the implications for the Moon's origin.

Asteroid 2024 YR4: From Earth Threat to Lunar Target

Next, we track the journey of asteroid 2024 YR4, which initially garnered attention as a potential Earth impactor. However, new observations indicate that this 60-meter-wide asteroid is now on a collision course with the Moon, raising the likelihood of an impact to 3.5%. We discuss its unique characteristics and the ongoing studies aimed at understanding its origins and physical properties.

Singing Stars and Galactic History

Additionally, we explore how stellar seismology is revealing the evolutionary history of stars in the open cluster Messier 67. By analyzing the oscillations of these stars, astronomers can map the history of the Milky Way and gain insights into stellar evolution. This innovative approach provides a deeper understanding of the life cycles of stars and their contributions to galactic archaeology.

00:00 Space Time Series 28 Episode 45 for broadcast on 14 April 2025

00:49 Findings from Chang'e 6 about lunar water distribution

06:30 Implications for lunar evolution and origin theories

12:15 Asteroid 2024 YR4's trajectory and characteristics

18:00 Transition from Earth impactor to Moon target

22:45 Stellar seismology insights from Messier 67

27:00 Summary of recent astronomical discoveries

30:15 Science report: Genetic engineering and the dire wolf

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✍️ Episode References

Nature

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

Astrophysical Journal Letters

https://iopscience.iop.org/journal/0004-637X (https://iopscience.iop.org/journal/0004-637X)

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Episode link: https://play.headliner.app/episode/26632157?utm_source=youtube