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
Inside the World of Shipwreck Archaeology | Dr. James Delgado [not-audio_url] [/not-audio_url]

Duration: 1:53:28
Maritime archaeologist James Delgado joins John Michael Godier to explore how shipwrecks on the ocean floor are rewriting our understanding of history. From luxury liners and forgotten trade ships to war graves and deep-…
10 Unsettling Ways Humans Could Go Extinct [not-audio_url] [/not-audio_url]

Duration: 16:29
An exploration of ten ways humans could go extinct other than the usual concepts of nuclear war, anthropogenic climate change, and asteroid impacts.Event Horizon:https://www.youtube.com/eventhorizonshowMy Patreon:https:/…
The Mysterious Star HD 139139 with Dr. Andrew Vanderburg [not-audio_url] [/not-audio_url]

Duration: 30:36
28 random dips of light were observed by the Kepler space telescope of the star HD 139139. The random transiting nature of the objects and the light curves were studied by a team that was lead by Dr. Saul Rappaport and D…
Life in the 18th Century with Jon Townsend [not-audio_url] [/not-audio_url]

Duration: 26:48
In part one of a two part episode we are joined by Jon Townsend who does historical reenactment, is the host of the youtube channel Townsend, and is the proprietor of the online store, https://www.townsends.us/John Micha…
3i/ATLAS Interstellar Comet Update For November 2025 [not-audio_url] [/not-audio_url]

Duration: 17:01
3i/ATLAS Interstellar Comet Update For November 2025 and how it might connect to the mysteriousTunguska Event of 1908. My Patreon Page:https://www.patreon.com/johnmichaelgodierMy Event Horizon Channel:https://www.youtube…
The Warning Signs of AI are Getting More Frequent [not-audio_url] [/not-audio_url]

Duration: 15:15
The Warning Signs of AI are Getting More FrequentPapers:"Darwin Among the Machines", Butler, 1863https://mediarep.org/server/api/core/bitstreams/e0da505d-200c-43ab-be4b-6604a4df816f/contentMusic:Cylinder Eight by Chris Z…
Using Black Holes to Traverse the Universe with Dr. David Kipping [not-audio_url] [/not-audio_url]

Duration: 51:05
The Halo Drive, using a laser to gain fuel free relativistic propulsion from a black hole. By shooting a laser close to the event horizon of a black hole, Dr. David Kipping's conceptual star drive could lead to traveling…
10 Unsettling Astronomical Incidents and Phenomena [not-audio_url] [/not-audio_url]

Duration: 18:47
An exploration of ten of the most unsettling astrophysical events including Dyson Sphere candidates, a star containing plutonium, the Wow! Signal and others. https://www.patreon.com/johnmichaelgodierhttps://www.youtube.c…