What’s Hiding Under Mars | Dr. Sam Courville

What’s Hiding Under Mars | Dr. Sam Courville

Author: John Michael Godier November 17, 2025 Duration: 51:03

Mars may look dead, but under its surface lies a record of its ancient water and perhaps even the ingredients for life. Planetary scientist Dr. Samuel Courville discusses the latest research on Martian ice, groundwater, volcanic history, and the potential for subsurface brine.Links:https://swim.psi.edu/https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2021GL093880https://iopscience.iop.org/article/10.3847/PSJ/abda5000:00:00 What’s Hiding Under Mars 00:01:55 Mars vs Ceres: Where Water Survives 00:05:33 The Allan Hills Meteorite and Ancient Clues 00:07:12 Mapping Mars’ Hidden Ice Today 00:10:40 What the Polar Caps Reveal About Mars’ Past 00:15:26 Using Radar to Probe Beneath the Surface 00:19:42 Mars as a Frozen Story of Early Earth 00:22:17 Glaciers and Volcanoes on the Red Planet 00:28:01 Did Mars Snow Water? 00:31:42 Subsurface Brines and Possible Hidden Lakes 00:38:17 Searching for Groundwater Deep Underground 00:43:12 Mars’ Ancient Hydrologic Cycle 00:48:21 When Mars Lost Its Water 00:52:43 Why Valles Marineris Still Mystifies Scientists 00:58:26 Future Missions to Map Mars’ Ice 01:04:03 The SWIM Project – Finding Ice for Exploration 01:11:38 Could Humans Extract Ice on Mars? 01:15:29 Lava Tubes: Potential Habitats 01:20:10 Ethical Risks of Rushing to Mars 01:24:36 Life, Contamination, and Planetary Protection 01:29:54 Would You Go to Mars? 01:33:42 Final Thoughts – Mars Still Has SecretsYouTube Membership: https://www.youtube.com/channel/UCz3qvETKooktNgCvvheuQDw/joinPodcast: hhttps://creators.spotify.com/pod/show/john-michael-godier/subscribeApple: https://apple.co/3CS7rjTMore JMG https://www.youtube.com/c/JohnMichaelGodierWant to support the channel?Patreon: https://www.patreon.com/EventHorizonShowFollow us at other places!@JMGEventHorizonMusic:https://stellardrone.bandcamp.com/https://migueljohnson.bandcamp.com/https://leerosevere.bandcamp.com/https://aeriumambient.bandcamp.com/FOOTAGE:NASAESA/HubbleESO - M.KornmesserESO - L.CalcadaESO - Jose Francisco Salgado (josefrancisco.org)NAOJUniversity of WarwickGoddard Visualization StudioLangley Research CenterPixabay


Curiosity about the cosmos often starts with a simple question, and that's where John Michael Godier's Event Horizon finds its rhythm. Hosted by author and futurist John Michael Godier, this podcast delves into the profound and the perplexing at the edges of our understanding. Each episode builds a narrative, weaving together discussions on astronomy, astrophysics, and the latest space science news with broader themes of technology, history, and futurism. The conversations are grounded by special guests who bring expertise and diverse perspectives, turning complex ideas into engaging explorations. You'll find the dialogue moves from the concrete details of scientific discovery to the speculative implications for our future, all with a thoughtful and accessible tone. This isn't just a recap of headlines; it's a deep dive into the context and consequences of what we're learning about the universe. For anyone who looks up at the night sky and wonders about black holes, the potential for life elsewhere, or where our technology might take us next, this podcast offers a compelling space to linger on those big ideas. The production emphasizes clarity and depth, making even the most daunting topics feel within reach. Tune in for a regular journey to the frontiers of science and human thought.
Author: Language: en-us Episodes: 100

John Michael Godier's Event Horizon
Podcast Episodes
Fusion and Magnetic Reconnection Propulsion with Dr. Fatima Ebrahimi [not-audio_url] [/not-audio_url]

Duration: 33:54
To get your free 30 day trial visit https://www.audible.com/eventhorizon or text EventHorizon to 500-500.A new type of rocket thruster that could take humankind to Mars and beyond has been proposed by Fatima Ebrahimi a p…
Does Venus Have Life? With Dr. Janusz Petkowski [not-audio_url] [/not-audio_url]

Duration: 1:01:49
Is There Life on Venus?Last week a team from MIT and Cardiff University announced the detection of Phosphine in the atmosphere at Venus our nearest neighbor. Phosphine (PH3) gas in Venus’s atmosphere should be in oxidize…
BLC1 the Proxima Centauri SETI Candidate with Jason Wright [not-audio_url] [/not-audio_url]

Duration: 31:48
BLC1 is a candidate SETI radio signal found by the Breakthrough Listen project, the signal is possibly coming from the star Proxima Centauri and has a frequency of 982.002 MHz.Jason Wright is a professor of Astronomy and…
Aliens are Hard to Find with Prof. Sara Seager [not-audio_url] [/not-audio_url]

Duration: 39:39
Sara Seager is the Professor of Planetary Science, Professor of Physics, and Professor of Aeronautics and Astronautics at the Massachusetts Institute of Technology. Her past research is credited with laying the foundatio…