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Planetary Radio Episodes
Since 2002, Planetary Radio has visited with a scientist, engineer, project manager, advocate, or writer who provides a unique perspective on the quest for knowledge about our Solar System and beyond. The full show archive is available for free.
The Los Angeles Astronomical Society is one of the oldest and largest amateur astronomy clubs in the United States, and this year it’s turning one hundred. We were there at Griffith Observatory for the centennial celebration to find out what keeps a community of skywatchers going for a century.
For the first time, the Planetary Society's annual Day of Action was followed by Igniting Discovery, a showcase of the NASA-funded science we're fighting to protect, held in the U.S. Senate building.
At Yuri's Night 2026, held at Griffith Observatory the day after Artemis II splashed down, Sarah Al-Ahmed spoke with educators, engineers, astronauts, and space philosophers about 65 years of human spaceflight and what it means to see Earth from space.
This week, Planetary Radio explores how Epic Spaceman uses visual effects and everyday metaphors to make the vast scale of the Universe feel human and understandable.
The Planetary Society visits TwitchCon 2025 to explore how livestreamers like Moohoodles are bringing space science to new audiences. The episode also features a Space Policy Update on Jared Isaacman’s renomination as NASA Administrator and celebrates the third anniversary of the LightSail 2 mission with Bruce Betts.
Erin Flynn-Evans, director of the Fatigue Countermeasures Laboratory at NASA Ames Research Center, shares how sleep science is helping astronauts stay healthy in space and prepare for future missions to Mars.
Space journalist Sarah Cruddas shares her journey from astrophysics to storytelling, exploring how journalism can make space exploration more accessible and meaningful.
We tackle the biggest questions about NASA's value, space exploration, and why public investment matters. Join us for a Q&A with Casey Dreier and Ambre Trujillo, and a space policy update with Jack Kiraly.
Why is Mars red? A new study led by Brown University’s Adomas Valantinas points to ferrihydrite, not hematite, revealing a wetter past and new clues about the Red Planet’s potential to support life.
Steven Smith, an Education Specialist from NASA's Science, Technology, Engineering, and Mathematics (or STEM) Program, joins Planetary Radio to share some of the unique opportunities available for students in the lead-up to humanity's return to the Moon.
Simone Marchi, co-investigator for NASA’s Psyche mission, joins Planetary Radio to share the creative ways their mission team is working to understand cratering on metallic worlds.
The second round awardees in a Planetary Society grant program will explore extreme life in super-salty lakes, and study how future Martians will grow their own food.
Join the mission’s deputy project scientist as the Perseverance rover prepares to search for life on the Red Planet.
The leader of the Mastcam-Z team talks about how the best cameras ever on the surface of Mars will help us explore a region that could once have supported life.
The search for life on Mars is at a critical stage. What will come next if we find it?
Cosmos has returned under the steady hand of Ann Druyan. We’ll talk with her about the third season of the television series and her companion book.
The founder of Astronomers Without Borders brings the organization’s leader in Nigeria to the Planetary Radio microphones.
Physicist and author Paul Davies returns to talk about his new book that explores the defining role information plays in life on Earth and perhaps elsewhere.
We talk with two of our 2019 Shoemaker NEO Grant winners, who received funding to help find, track, and characterize potentially hazardous asteroids.
Chris Carberry traces the history and future of alcohol in space through his new book.