What’s Hiding Under Mars | Dr. Sam Courville episode artwork

EPISODE · Nov 17, 2025 · 51 MIN

What’s Hiding Under Mars | Dr. Sam Courville

from John Michael Godier's Event Horizon · host John Michael Godier

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

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

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What’s Hiding Under Mars | Dr. Sam Courville

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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...

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