
Insights from recent episode analysis
Audience Interest
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Insights are generated by CastFox AI using publicly available data, episode content, and proprietary models.
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Total monthly reach
Estimated from 8 chart positions in 8 markets.
By chart position
- 🇩🇪DE · Natural Sciences#1455K to 30K
- 🇨🇦CA · Natural Sciences#1665K to 30K
- 🇦🇺AU · Natural Sciences#1765K to 30K
- 🇫🇷FR · Natural Sciences#3330K to 100K
- 🇮🇹IT · Natural Sciences#1141K to 10K
- Per-Episode Audience
Est. listeners per new episode within ~30 days
30K to 122K🎙 ~2x weekly·429 episodes·Last published 2w ago - Monthly Reach
Unique listeners across all episodes (30 days)
60K to 243K🇫🇷41%🇩🇪12%🇨🇦12%+5 more - Active Followers
Loyal subscribers who consistently listen
24K to 97K
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Reach across major podcast platforms, updated hourly
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* Data sourced directly from platform APIs and aggregated hourly across all major podcast directories.
On the show
From 10 epsHosts
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Recent episodes
Episode 430 - "I am being ambushed"
Jun 5, 2026
1h 02m 47s
Episode 429 - "Summer Shorts" GPR
May 29, 2026
48m 52s
428: Episode 428 - "Pedagogical Gold"
May 15, 2026
56m 42s
Episode 427 - "Feeding Tubes Yo!"
Mar 28, 2026
58m 49s
Episode 426 - "Hard K Sound is Hilarious"
Mar 13, 2026
42m 27s
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| Date | Episode | Topics | Guests | Brands | Places | Keywords | Sponsor | Length | |
|---|---|---|---|---|---|---|---|---|---|
| 6/5/26 | ![]() Episode 430 - "I am being ambushed"✨ | productivityexercise+3 | — | Journal of Exercise Physiology OnlineSlow Productivity+1 | — | Slow Productivityexercise performance+3 | — | 1h 02m 47s | |
| 5/29/26 | ![]() Episode 429 - "Summer Shorts" GPR✨ | ground penetrating radarlightning+3 | — | Geophysical Research LettersCorona discharges glow on trees under thunderstorms. | — | GPRground penetrating radar+3 | — | 48m 52s | |
| 5/15/26 | ![]() 428: Episode 428 - "Pedagogical Gold"✨ | fieldworkgeology+3 | — | Physics TodayPhysical properties of a perfect pasta sauce | — | outcropfield camp+5 | — | 56m 42s | |
| 3/28/26 | ![]() Episode 427 - "Feeding Tubes Yo!"✨ | fossilstrace fossils+3 | — | Wit meets wisdom: the relationship between satire and anthropomorphic humor on scientists' likability and legitimacy.Journal of Science Communication | — | trace fossilfossil identification+3 | — | 58m 49s | |
| 3/13/26 | ![]() Episode 426 - "Hard K Sound is Hilarious"✨ | temperaturetemperature scales+3 | — | Proceedings of the National Academy of Sciences | — | temperaturetemperature scales+3 | — | 42m 27s | |
| 2/6/26 | ![]() Episode 425 - "How jiggly are your bits?"✨ | temperaturetemperature scales+3 | — | Communications EngineeringPeriodic cooking of eggs | — | temperaturetemperature scales+3 | — | 58m 48s | |
| 1/30/26 | ![]() Episode 424 - "Aunt Betty" Liquefaction✨ | liquefactioncaskets+4 | — | Science AdvancesMorphing pasta and beyond | — | liquefactioncaskets+3 | — | 46m 32s | |
| 1/10/26 | ![]() Episode 423 - "The rumors of our death"✨ | data analysismedical research+3 | Andrea TaloniVincenzo Scorcia+1 | JAMA ophthalmology 141.12 (2023): 1174-1175 | — | large language modeldata analysis+3 | — | 1h 01m 13s | |
| 11/7/25 | ![]() Episode 422 - "Melissa"✨ | Hurricane MelissaHalloween+4 | — | Trick, treat, or toy: children are just as likely to choose toys as candy on Halloween. | — | Hurricane MelissaHalloween candy+3 | — | 46m 02s | |
| 9/19/25 | ![]() Episode 421 - "Come work for you"✨ | GEARS workshopanimal evolution+3 | — | Animal Evolution: Genomes, Fossils, and Trees | — | GEARS workshopanimal evolution+3 | — | 1h 06m 26s | |
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| 9/6/25 | ![]() Episode 420 - "Tourist Destination" Kamchatka Earthquake | This week we are back and discussing the recent large earthquake in Russia! Fun Paper Friday Is that viral video of a fault rupture form a security camera real? This paper checks it out. Kearse, Jesse, and Yoshihiro Kaneko. "Curved Fault Slip Captured by CCTV Video During the 2025 M w 7.7 Myanmar Earthquake." The Seismic Record 5.3 (2025): 281-288. Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 8/8/25 | ![]() Episode 419 - "Diamonds Everywhere" A States | We're hitting the open road — geologically speaking. This episode kicks off our new state-by-state series covering the most fascinating, scenic, or just plain weird geologic stops in the U.S. We’re going alphabetically (because of course we are), starting with Alabama, Alaska, and Arkansas. Some sites we've visited, others are firmly on our dream list, but every pick is guaranteed to bring a bit of science to your next adventure. Alabama Cheaha Mountain Cathedral Caverns Alaska Wrangell-St. Elias National Park Mendenhall Glacier Arkansas Crater of Diamonds State Park Blanchard Springs Caverns Fun Paper Friday Frost, Mungo, et al. "Diamond precipitation dynamics from hydrocarbons at icy planet interior conditions." Nature astronomy 8.2 (2024): 174-181. Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 8/1/25 | ![]() Episode 418 - "I like the crystal habit" | What makes a mineral a favorite? In this fun and down-to-earth episode, John and Shannon swap stories about the minerals they love most — and why. Along the way, they unpack cool crystal habits, formation environments, fieldwork memories, and the aesthetic appeal of minerals from museum specimens to muddy boots. Shannon shares her appreciation for: Hematite – With its metallic luster and planetary significance. Goethite – A subtle but important iron oxide-hydroxide. Smithsonite – Beautiful colors and a fascinating history in ore geology. John counters with: Ulexite – “TV rock,” with fiber-optic properties that never fail to wow. Uraninite – A dense, radioactive reminder of geologic power and energy. Tourmaline – A colorful, complex favorite of mineral collectors and scientists alike. Fun Paper Friday James, C. W., et al. "A nanosecond-duration radio pulse originating from the defunct Relay 2 satellite." The Astrophysical Journal Letters 987.1 (2025): L16. Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 7/11/25 | ![]() Episode 417 - "Who are you?" | We're back from summer break - Shannon taught field camp, John travelled for work and got hailed on, and more! John’s Hail Storm Fun Paper Friday How does modern AI stack up against a cognition test designed for humans? Dayan, Roy, Benjamin Uliel, and Gal Koplewitz. "Age against the machine—susceptibility of large language models to cognitive impairment: cross sectional analysis." bmj 387 (2024). Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 5/16/25 | ![]() Episode 416 - "Life is a Physics Exam" | This week we talk about how we power our instruments in the field and all of the weird and wonderful ways they fail. Including getting turned into charcoal by lightning! Fun Paper Friday Why does ketchup splatter? Find out! Arstechnica Article Cuttle, Callum, and Christopher W. MacMinn. "Dynamics of compression-driven gas-liquid displacement in a capillary tube." Physical Review Letters 130.11 (2023): 114001. Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 4/25/25 | ![]() Episode 415 - "Fiat 500 Volcanic Bomb" | This week we talk hail, Vesuvius, volcanic bombs, and vitrified brains. Scandone, Roberto, Lisetta Giacomelli, and Mauro Rosi. "Death, Survival and Damage during the 79 AD Eruption of Vesuvius which destroyed Pompeii and Herculaneum." J. Res. Didact. Geogr 2 (2019): 5-30. Fun Paper Friday An amazing new finding shows that brains were vitrified or turned to glass during the nearly 2000 year old eruption of Vesuvius. Giordano, Guido, et al. "Unique formation of organic glass from a human brain in the Vesuvius eruption of 79 CE." Scientific Reports 15.1 (2025): 5955. Mt Vesuvius Plinian Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 4/18/25 | ![]() Episode 414 - "Closed Because of Landslide" | Shannon's class took a trip to study catestrophic sedimentation... and they found it! John switched back to a Mac after 5 years. Join us for these and other exciting updates! Fun Paper Friday Find out how alcohol and an eye puffer machine cominbed with magnets can teach us about where our motor skills reside in the brain. Johansson, Fredrik, et al. "Alcohol impairs learning and timing of conditioned eyeblink responses." Brain Research 1854 (2025): 149545. Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 4/4/25 | ![]() Episode 413 - "Waterfalls I Have Loved" | Turner Falls, Oklahoma A rare waterfall that grows outward due to travertine deposition instead of eroding backward. Formed by spring-fed Honey Creek flowing through Ordovician limestone, creating massive travertine deposits. Pe'ePe'e Falls, Hawai'i (Big Island) ~80 ft falls in downtown Hilo, part of the Wailuku River flowing between Mauna Kea and Mauna Loa. Carved into 10,000-year-old lava flows with subsequent flows creating the Boiling Pots — vertical and horizontal lava tubes. Extremely dangerous, especially after storms — known as the deadliest water in Hawai'i. Cataratas do Iguaçu, Brazil/Argentina Largest waterfall system in the world, spanning the Argentina-Brazil border. Name means "Big Water" in Guarani. Upstream from the Itaipu Dam, which generates most of Paraguay’s electricity. Itaipu — the 3rd largest hydroelectric plant globally and 2nd in power output. Bonus Waterfalls Mentioned: Cascata delle Marmore, Italy – Ancient Roman-engineered waterfall. Natural Falls - West Siloam Springs, OK Devil’s Kettle, Minnesota – Mysterious waterfall where water seems to disappear underground. Fun Paper Friday What can spacecraft learn from cats? Zhang, Li, et al. "Analysis of Cushioned Landing Strategies of Cats Based on Posture Estimation." Biomimetics 9.11 (2024): 691. Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 3/8/25 | ![]() Episode 412 - "Unpopular Flavor of Capri Sun" | This week we talk about snow forecasting as the winter season starts to wrap up and try to figure out if you're really happier in the morning or not! Fun Paper Friday https://mentalhealth.bmj.com/content/28/1/e301418 Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 2/14/25 | ![]() Episode 411 - "TSA Does Not Care About Your Data " | Ever wondered how geologists figure out when a landslide happened? Or how ancient river terraces and glacial deposits get dated? This week, we dive into the detective work behind dating geomorphic features! 🌍🔬 From tree rings to cosmic rays, we explore the fascinating methods geologists use to reconstruct Earth’s history and assess natural hazards. Why Dating Landslides and Other Features is Hard Landslides can reactivate multiple times, fluvial deposits get reworked, and glacial features have complex histories. What are we really dating—the event, the material, or the last exposure? Dating Techniques in Geology Dendrochronology 🌲 – Tree rings reveal landslides, floods, and debris flows. Radiocarbon Dating 💀 – Organic material like charcoal and buried soil horizons provide time markers. Optically Stimulated Luminescence (OSL) 🌞 – Measures when quartz grains were last exposed to sunlight. Cosmogenic Nuclide Dating ☄️ – Tracks surface exposure using cosmic rays. Other Methods – Lichen growth, volcanic ash layers, and earthquake trenching. Fun Paper Friday Ever wondered if your favorite neon-orange snack has hidden superpowers? This study explores how strongly absorbing molecules, like those found in food dyes, can reduce light scattering in biological tissues—making them temporarily more transparent! Researchers applied tartrazine (a common food coloring) to live mice and were able to see internal structures like blood vessels without invasive procedures. The discovery could improve biomedical imaging, but we’re mostly just fascinated that Dorito dust might have unexpected side effects! Ou, Zihao, et al. "Achieving optical transparency in live animals with absorbing molecules." Science 385.6713 (2024): eadm6869. Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 2/7/25 | ![]() Episode 410 - "GEARS OIL UTEP" | We just wrapped up our first-ever on-site GEARS Workshop at UTEP and it was a massive success! 🎉 Tune in as we break down the highlights, what we learned, and how this hands-on geoscience training is evolving for the future. Fun Paper Friday Can paranormal lights actually be tied to earthquakes? Hough, Susan E. "Haunted Summerville: Ghostly Lights or Earthquake Lights?." Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 1/24/25 | ![]() Episode 409 - "Resolutions" | This week, it's time for our 2025 resolutions show, where we see how we can improve this year and discuss everything that's changed in the past year! Fun Paper Friday We are all overloaded with surveys and requests, but can a chocolate bar increase the response rates? Jamtvedt, Gro, et al. "Chocolate bar as an incentive did not increase response rate among physiotherapists: a randomised controlled trial." BMC research notes 1 (2008): 1-4. Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 1/17/25 | ![]() Episode 408 - "Everywhere there's cottonwood trees" | This week we wrap up our finding faults show started oh so long ago! Learn how to identify faults in the field and then relax with a coffee with a physicist! A perfectly spherical coffee on a frictionless plane that is! Fun Paper Friday Bossart, Aleksi, Romain Fleury, and Benjamin Apffel. "Science of a coffee cup: a physicist walks into a bar..." arXiv preprint arXiv:2501.01180 (2025). Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 12/27/24 | ![]() Episode 407 - "If you like dragons, that's important to you" Joshua Pearce | This week, we’re thrilled to welcome Joshua Pearce to the show! We dive into the world of open-source hardware for academic labs, the challenges and rewards of open-sourcing projects, and the exciting opportunities it creates for researchers and the general public alike. Tune in for a fascinating discussion about innovation, making, and the future of accessible technology! Joshua Pearce Open-Source Lab: How to Build Your Own Hardware and Reduce Research Costs Create, Share, and Save Money Using Open-Source Projects To Catch the Sun: Inspiring stories of communities coming together to harness their own solar energy, and how you can do it too! Feeding Everyone No Matter What: Managing Food Security After Global Catastrophe @ProfPearce Fun Paper Friday This Study Was Hailed as a Win for Science Reform. Now It’s Being Retracted. Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
| 12/21/24 | ![]() Episode 406 - "Taking in all the really interesting things" | Shannon went to AGU and we're updated on the meeting and what cool new science things she saw! Fun Paper Friday He, Yu, et al. "Superionic iron alloys and their seismic velocities in Earth’s inner core." Nature 602.7896 (2022): 258-262. Contact us: Show Support us on Patreon! www.dontpanicgeocast.com @dontpanicgeo dontpanicgeocast@gmail.com John Leeman www.johnrleeman.com @geo_leeman Shannon Dulin @ShannonDulin | — | ||||||
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Chart Positions
8 placements across 8 markets.
Chart Positions
8 placements across 8 markets.
