Astronomy Cast Ep. 779: Milankovitch Cycles By Fraser Cain & Dr. Pamela Gay Streamed live on Jan 12, 2026. Humans live short lives, and from our perspective the seasons are something that come and go with perfect regularity. But astronomers know the terrible truth! And that there are cycles that slowly shift over tens of thousands of years, shifting the cycl ... Show More
Jan 5
Ep. 777: The Eddington Limit
Astronomy Cast Ep. 777: The Eddington Limit By Fraser Cain & Dr. Pamela Gay Streamed live on Dec 29, 2025. How big can a star get? This is a calculation made by one of the original pioneers of modern astronomy, Sir Arthur Eddington. And it's named after him, the Eddington Limit. ... Show More
35m 33s
Mar 2025
An extinction-level event for NASA science
<p>NASA's science missions have transformed our understanding of the Universe, from breathtaking images of deep space to robotic explorers on Mars. But now, a reported 50% cut to NASA's science budget threatens to shut down missions, halt discoveries, and devastate the future of ... Show More
1h 7m
Jan 2025
Apollo Secrets, Cosmic Questions & Martian Mysteries: #484
<b>Space Nuts Episode 484: Unveiling Moon Mysteries, Fermi Paradox Insights, and Mars Terraforming Challenges - A Holiday Special Episode</b><br />Join Andrew Dunkley and Professor Fred Watson as they delve into the fascinating realms of lunar exploration, the enigmatic Fermi Par ... Show More
32m 59s
Dec 2024
Journey to the Stars with Bill Nye
<p>Could life hitchhike across planets? What color is the sky on Mars? Neil deGrasse Tyson and Bill Nye, the current CEO of The Planetary Society, team up to discuss the science and advocacy that goes into space exploration, unraveling the threads of discovery that define humanit ... Show More
44m 41s
Aug 2023
Mars Life Explorer: The search for extant life on the red planet
<p>Many missions are working to understand Mars' past habitability, but could there still be microbial life on the red planet today? This week on Planetary Radio, we discuss the proposed Mars Life Explorer mission with Amy Williams, assistant professor of geology at the Universit ... Show More
57m 43s
Dec 2023
A Year in Mars Dune Alpha
To prepare for the day when humans travel to Mars, NASA is conducting a one-year experiment in a Mars simulation environment. So what’s it like to spend a year in CHAPEA, the Crew Health and Performance Exploration Analog? In this season finale episode, travel through the airlock ... Show More
26m 21s