Titan's Missing Deltas, Mars' Volcanic Past, and Kelt 9b's Metal Discovery

This episode of SpaceTime is brought you with the support of NordVPN...our official VPN service. To get your 74% discount plus 4 months extra for free, all with a 30 day money back guarantee, simply visit www.nordvpn.com/spacetimeSupport the show and check them out.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 MarsNext, 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 AtmosphereFinally, 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✍️ Episode ReferencesJournal of Geophysical Research Planetshttps://agupubs.onlinelibrary.wiley.com/journal/21699356Science Advanceshttps://www.science.org/journal/sciadvAstronomy and Astrophysicshttps://www.aanda.org/NASAhttps://www.nasa.gov/Become a supporter of this podcast: https://www.spreaker.com/podcast/spacetime-space-astronomy--2458531/support.00:00 This is space Time Series 28, Episode 52 for broadcast on 30 April 202500:46 Scientists are looking for Titan's missing river deltas06:02 NASA's Mars Perseverance Rover is analyzing Martian volcanic rocks10:17 Astronomers have discovered rare Earth metals in the atmosphere of a hot exoplanet17:58 People who were conceived during colder seasons store fat differently, study finds20:25 YouTube is celebrating its 20th birthday with some interesting stats22:16 Google to launch Android 16 three or four months earlier than Apple's iOS