<p>Detecting volcanic eruptions on Earth is detective work; doing it on the Red Planet is a feat of cosmic proportions. 2026 Science Podcast of the Year winner <strong>Dr. Jeffrey Zurek</strong> welcomes <strong>Dr. Allison Graettinger</strong> (UMKC) to discuss the hunt for "Maars"—violent, steam-driven volcanoes—on Mars.</p><p>We explore the sociology of becoming a scientist, from muddy kid to volcano expert, &amp; how these unassuming circular lakes are actually clues to subsurface water &amp; ice. Discover the <strong>Marvelous Database</strong>, the physics of <strong>thermal inertia</strong>, &amp; why a rubber duck named "Ducky" is the most famous attendee at international science conferences.</p><p><strong>Topics Covered</strong></p><ul><li><strong>Phreatomagmatism:</strong> Breaking down the explosive interaction between magma and groundwater.</li><li><strong>The Marvelous Database:</strong> A global catalog of 430+ Earth Maars used as a training set for planetary discovery.</li><li><strong>Career Paths:</strong> Why New Zealand and Nicaragua were the "Permissive Environments" Dr. Graettinger needed to grow.</li><li><strong>Geologic Hazards:</strong> The moving threat zones of distributed volcanic fields.</li><li><strong>Experiments:</strong> Pouring molten lava onto "sand popsicles" to simulate Martian ice interactions.</li><li><strong>Planetary Detectives:</strong> Using crater shapes (even "Mickey Mouse" ones) to map hidden Martian water.</li></ul><p><strong>Chapters</strong></p><p><strong>(00:00)</strong> Maars on Mars: A Tongue Twister</p><p><strong>(02:10)</strong> Phreatomagmatic Diatremes Defined</p><p><strong>(03:45)</strong> Guest: Dr. Allison Graettinger</p><p><strong>(05:15)</strong> Sociology: Permission to Study Lava</p><p><strong>(06:40)</strong> Field Work: Dust, Ash, and Gas</p><p><strong>(08:30)</strong> Why Study Maars? Hazards and Risks</p><p><strong>(10:45)</strong> Scaling Eruptions: VEI vs. St. Helens</p><p><strong>(12:35)</strong> Distributed Volcanic Fields Explained</p><p><strong>(17:15)</strong> Physics of Magma-Water Interaction</p><p><strong>(21:50)</strong> The Marvelous Database Project</p><p><strong>(26:50)</strong> Remote Sensing: Thermal Inertia</p><p><strong>(30:10)</strong> Mars vs. Earth: Gravity and Shape</p><p><strong>(34:40)</strong> Searching for Craters on Mars</p><p><strong>(36:40)</strong> "Goofing" with Lava and Ice Popsicles</p><p><strong>(41:10)</strong> Methane, Permafrost, and CO2 Ice</p><p><strong>(43:55)</strong> Mapping Water for Future Missions</p><p><strong>(48:25)</strong> Ducky: The Scientist’s Companion</p><p><strong>(51:00)</strong> The Science Joke</p><p><strong>Links &amp; Resources</strong></p><ul><li><strong>Support:</strong> <a target="_blank" rel="noopener nofollow" class="ng-star-inserted" href="https://www.patreon.com/WhimsicalWavelengths">Pateron</a></li><li><strong>Socials:</strong> <a target="_blank" rel="noopener nofollow" class="ng-star-inserted" href="https://bsky.app/profile/whimsicallambda.bsky.social">Bluesky</a><a target="_blank" rel="noopener nofollow" href="https://bsky.app/profile/whimsicallambda.bsky.social"> </a>| <a target="_blank" rel="noopener nofollow" class="ng-star-inserted" href="https://www.instagram.com/whimsical.wavelengths/">Instagram</a><a target="_blank" rel="noopener nofollow" href="https://www.instagram.com/whimsical.wavelengths/"> </a>| <a target="_blank" rel="noopener nofollow" class="ng-star-inserted" href="https://www.facebook.com/WhimsicalWavelengths">Facebook</a></li></ul><p><strong>Whimsical Wavelengths:</strong> Deep-dive conversations where a working scientist unpacks how we know what we know, one paper, one idea, or whimsical detour at a time. Hosted by <strong>Dr. Jeffrey Zurek (P.Geo)</strong>.</p>