Don't Panic Geocast

By John Leeman and Shannon Dulin

John Leeman and Shannon Dulin discuss geoscience and technology weekly for your enjoyment! Features include guests, fun paper Friday selections, product reviews, and banter about recent developments. ... more

4.9

4545 ratings

Download on the App Store

Download on the App Store

Get it on Google Play

FAQs about Don't Panic Geocast:

How many episodes does Don't Panic Geocast have?

The podcast currently has 429 episodes available.

Don't Panic Geocast episodes:

March 28, 2026Episode 427 - "Feeding Tubes Yo!"
This week we help a listener identify their bizarre fossil - and it's a trace fossil! Learn all about it and find out if you'd remember more if we were funnier!
Trace Fossil Dictionary
Shannon’s Favorite Trackway
Asterosoma
Fun Paper Friday
Would you remember more about science if your teachers presented it in a funny way?
Frank, Alexandra L., et al. "Wit meets wisdom: the relationship between satire and anthropomorphic humor on scientists' likability and legitimacy." Journal of Science Communication 24.1 (2025): A04.
...more
59min
March 13, 2026Episode 426 - "Hard K Sound is Hilarious"
This week, we continue to talk about temperature with a discussion of temperature scales, where they came from, and why there are so many!
Fun Paper Friday
Kaiser, Caspar, and Andrew J. Oswald. "The scientific value of numerical measures of human feelings." Proceedings of the National Academy of Sciences 119.42 (2022): e2210412119.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
...more
43min
February 06, 2026Episode 425 - "How jiggly are your bits?"
What is temperature? Why do we care? Where did all of these temperature scales come from? This week, we find out!
Fun Paper Friday
Di Lorenzo, Emilia, et al. "Periodic cooking of eggs." Communications Engineering 4.1 (2025): 1-10.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
...more
59min
January 30, 2026Episode 424 - "Aunt Betty" Liquefaction
This week it's all about liquefaction as we explore why some caskets are above ground and how some cars get half way buried.
Flame Structure
Sand Boil
Quicksand
Fun Paper Friday
Can creatively shaped pasta fold itself when cooked?
Tao, Ye, et al. "Morphing pasta and beyond." Science Advances 7.19 (2021): eabf4098.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
...more
47min
January 10, 2026Episode 423 - "The rumors of our death"
We are back after a very challenging 2025 but don't panic - there is a plan!
Fun Paper Friday
Taloni, Andrea, Vincenzo Scorcia, and Giuseppe Giannaccare. "Large language model advanced data analysis abuse to create a fake data set in medical research." JAMA ophthalmology 141.12 (2023): 1174-1175.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
...more
1h 2min
November 07, 2025Episode 422 - "Melissa"
We're still here - it has just been a very difficult time, but this week we're talking about Hurricane Melissa and Halloween Candy!
Hurricane Melissa
Video Inside the Hurricane
Fun Paper Friday
Trick or Treat! Maybe it should be Treat or Toy? Find out in this week's Fun Paper!
Schwartz, Marlene B., Eunice Y. Chen, and Kelly D. Brownell. "Trick, treat, or toy: children are just as likely to choose toys as candy on Halloween." Journal of nutrition education and behavior 35.4 (2003): 207-209.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
...more
47min
September 19, 2025Episode 421 - "Come work for you"
This week, we chat about our GEARS workshop that recently wrapped up, how it has evolved, and how it went!
GEARS Workshop
Fun Paper Friday
Hejnol, Andreas, and Mark Q. Martindale. "The mouth, the anus, and the blastopore—open questions about questionable openings." Animal Evolution: Genomes, Fossils, and Trees (2009): 33-40.
Contact us:
Show
Support us on Patreon!
www.dontpanicgeocast.com
@dontpanicgeo
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
...more
1h 7min
September 06, 2025Episode 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
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
...more
47min
August 08, 2025Episode 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
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
...more
49min
August 01, 2025Episode 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
[email protected]
John Leeman
www.johnrleeman.com
@geo_leeman
Shannon Dulin
@ShannonDulin
...more
51min

FAQs about Don't Panic Geocast:

How many episodes does Don't Panic Geocast have?

The podcast currently has 429 episodes available.

More shows like Don't Panic Geocast

Wait Wait... Don't Tell Me! by NPR

Wait Wait... Don't Tell Me!

38,950 Listeners

Science Friday by Science Friday and WNYC Studios

Science Friday

6,467 Listeners

The Daily by The New York Times

The Daily

113,121 Listeners

Up First from NPR by NPR

Up First from NPR

56,944 Listeners

Short Wave by NPR

Short Wave

6,592 Listeners

Geology Bites by Oliver Strimpel

Geology Bites

150 Listeners