Earth’s Elemental Mysteries, Ariel’s Geological Secrets, and Comet Atlas’s Demise: S28E20

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Recorded14 Feb 2025

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SpaceTime Series 28 Episode 20 The Astronomy, Space and Science News Podcast New Discoveries on Earth's Elements, Uranus's Moon Ariel, and the Fate of Comet Atlas In this episode of SpaceTime, we delve into a groundbreaking study that challenges long-held beliefs about the origins of Earth's missing moderately volatile elements, such as copper and zinc. This research suggests that rather than being lost during the early formation of the solar system, these essential elements were likely retained by the first planetesimals and lost later due to violent cosmic collisions during planetary growth, reshaping our understanding of planetary chemistry and habitability. Uranus's Moon Ariel: A Window to Its Interior We also explore the fascinating trench-like features on Uranus's moon Ariel, which may serve as conduits for internal materials. New research indicates that these medial grooves could provide insights into Ariel's geological history and potential subsurface oceans, highlighting the complex interplay of tectonic and volcanic activities on the moon's surface. Comet Atlas: A Dying Wonder Additionally, we discuss the fate of Comet G3 Atlas, which has recently passed perilously close to the Sun, resulting in the fragmentation of its nucleus. As it fades from view, Atlas becomes a headless wonder, leaving behind a trail of debris that will continue to orbit the Sun. This episode also features a look at the stunning night skies of February, including the iconic constellations and celestial events to observe. 00:00 Space Time Series 28 Episode 20 for broadcast on 14 February 2025 00:49 New insights into Earth's missing elements 06:30 Trench-like features on Uranus's moon Ariel 12:15 The demise of Comet G3 Atlas 18:00 February night sky highlights 22:45 The constellation Orion and its myths 27:00 Exploring the Pleiades and other celestial wonders 30:15 The significance of the Milky Way in stargazing www.spacetimewithstuartgary.com (https://www.bitesz.com/nordvpn) . Enjoy incredible discounts and bonuses! Plus, it’s risk-free with Nord’s 30-day money-back guarantee! ✌ Check out our newest sponsor - Old Glory (https://www.bitesz.com/oldglory) - Iconic Music and Sports Merch and now with official NASA merchandise. Well worth checking out... Become a supporter of this Podcast for as little as $3 per month and access commercial-free episodes plus bonuses: https://www.spacetimewithstuartgary.com/about (https://www.spacetimewithstuartgary.com/about) ✍️ Episode References NASA https://www.nasa.gov Science Advances https://www.science.org/journal/sciadv Planetary Science Journal https://www.journals.elsevier.com/planetary-science-journal Sky and Telescope https://skyandtelescope.org Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-astronomy-science-news--2458531/support (https://www.spreaker.com/podcast/spacetime-astronomy-science-news--2458531/support?utm_source=rss&utm_medium=rss&utm_campaign=rss) . Episode link: https://play.headliner.app/episode/25589155?utm_source=youtube

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