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Home Space News

This Week In Space podcast: Episode 186 — Snow on the Moon?

Ensign by Ensign
November 16, 2025
in Space News
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This Week In Space podcast: Episode 186 — Snow on the Moon?
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Snow on the Moon? – With Dr. Jim Green, Former NASA Chief Scientist – YouTube
Snow on the Moon? - With Dr. Jim Green, Former NASA Chief Scientist - YouTube

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On Episode 185 of This Week In Space, Rod Pyle and Tariq Malik talk with Dr. Jim Green, NASA’s former chief scientist, about snow on the moon.

Snow on the moon? Yes, though not recently… but maybe billions of years ago. Recent discoveries indicate that the early moon, orbiting just 20,000 miles above our planet at the time, may have shared a dynamic magnetic field with that of the Earth, resulting in the moon having an early atmosphere about twice as dense as the Martian atmosphere is today!

This has wide implications for planetary science, but perhaps our favorite is that it may have snowed both carbon dioxide and water ice on the moon back in the day.


You may like

We’re also talking about the amazing launch and recovery of New Glenn, the plight of the Chinese taikonauts aboard the Tiangong space station, and a recent SpaceX memo about—no surprises here — a delay to their lunar landing program for Artemis III. Join us!

Download or subscribe to this show at: https://twit.tv/shows/this-week-in-space.

Get episodes ad-free with Club TWiT at https://twit.tv/clubtwit

Space news of the week

Model Falcon 9!

Finally, did you know you can launch your own SpaceX rocket? Model rocket maker Estes’ stunning scale model of a Falcon 9 rocket that you can pick up now. The launchable model is a detailed recreation of the Falcon 9 and retails for $149.99. You can save 10% by using the code IN-COLLECTSPACE at checkout, courtesy of our partners collectSPACE.com.

About This Week In Space

This Week in Space covers the new space age. Every Friday we take a deep dive into a fascinating topic. What’s happening with the new race to the moon and other planets? When will SpaceX really send people to Mars?

Breaking space news, the latest updates on rocket launches, skywatching events and more!

Join Rod Pyle and Tariq Malik from Space.com as they tackle those questions and more each week on Friday afternoons. You can subscribe today on your favorite podcatcher.

Host of This Week In Space on TWiT

Rod Pyle
Host of This Week In Space on TWiT

Space author and historian

Rod Pyle is an author, journalist, television producer and Editor-in-Chief of <em>Ad Astra magazine. He has written 18 books on space history, exploration, and development, including Space 2.0, Innovation the NASA Way, Interplanetary Robots, Blueprint for a Battlestar, Amazing Stories of the Space Age, First On the Moon, and Destination Mars

In a previous life, Rod produced numerous documentaries and short films for The History Channel, Discovery Communications, and Disney. He also worked in visual effects on Star Trek: Deep Space Nine and the Battlestar Galactica reboot, as well as various sci-fi TV pilots. His most recent TV credit was with the NatGeo documentary on Tom Wolfe’s iconic book The Right Stuff.

This Week In Space co-host

Tariq Malik
This Week In Space co-host

Tariq Malik

Space.com Editor-in-Chief

Responsible for Space.com’s editorial vision, Tariq Malik has been the Editor-in-Chief of Space.com since 2019 and has covered space news and science for 18 years. He joined the Space.com team in 2001, first as an intern and soon after as a full-time spaceflight reporter covering human spaceflight, exploration, astronomy and the night sky. He became Space.com’s managing editor in 2009. As on-air talent has presented space stories on CNN, Fox News, NPR and others.

Tariq is an Eagle Scout (yes, he earned the Space Exploration merit badge), a Space Camp veteran (4 times as a kid, once as an adult), and has taken the ultimate “vomit comet” ride while reporting on zero-gravity fires. Before joining Space.com, he served as a staff reporter for The Los Angeles Times covering city and education beats. He has journalism degrees from the University of Southern California and New York University.

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