Supernovae, Stellar Mapping, and Saturn's New Moons: S28E34

SpaceTime Series 28 Episode 34The Astronomy, Space and Science News PodcastSupernovae's Role in Mass Extinctions, NASA's Stellar Mapping Mission, and New Moons of SaturnIn this episode of SpaceTime, we explore a fascinating new study suggesting that nearby supernovae could have triggered at least two of Earth's mass extinction events. These violent stellar explosions may have stripped away the ozone layer, exposing life to harmful ultraviolet radiation and leading to significant ecological upheaval. We delve into the implications of these findings and how they reshape our understanding of Earth's history.Nasa's SPHEREx MissionWe also discuss NASA's successful launch of the SPHEREx mission, designed to map the entire celestial sky in unprecedented detail. This mission aims to create a three-dimensional map of over 450 million galaxies, utilizing advanced spectroscopy techniques to analyze infrared light and uncover the mysteries of cosmic inflation and the ingredients necessary for life.Saturn's Expanding Moon FamilyAdditionally, astronomers have made an exciting discovery of 128 new moons orbiting Saturn, bringing its total to 274. These tiny moonlets, likely remnants of larger captured moons, offer insights into the history and evolution of the Saturnian system.00:00 Space Time Series 28 Episode 34 for broadcast on 19 March 202500:49 Supernovae and mass extinction events06:30 The role of supernovae in Earth's history12:15 Overview of NASA's SPHEREx mission18:00 Spectroscopy and cosmic inflation studies22:45 Discovery of new moons around Saturn27:00 Summary of recent astronomical findings30:15 Discussion on dietary changes in Australia by 2030www.spacetimewithstuartgary.comwww.bitesz.com🌏 Get Our Exclusive NordVPN deal here ➼ 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 - 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✍️ Episode ReferencesMonthly Notices of the Royal Astronomical Societyhttps://academic.oup.com/mnrasNASAhttps://www.nasa.govPlanetary Science Journalhttps://www.planetarysciencejournal.com/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.