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  • “Exploration is in our nature.” - Carl Sagan

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.

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Artemis I launch

Celebrating NASA’s Artemis I mission to the Moon

Jeremy Graeber, the assistant launch director at Kennedy Space Center in Florida, joins Planetary Radio to recount his experience on the night of Artemis I’s historic launch.

JWST Carina Nebula

Planetary Society All-Stars Review the Year in Space

For his last episode as host, Mat Kaplan welcomes many of his Planetary Society colleagues for a review of a spectacular year of space exploration.

Artemis I Orion recovery

Artemis 1 Orion capsule comes home, and the best of Planetary Radio

Host Mat Kaplan greets the Orion capsule that has just returned from the Moon, and then presents some of the best of Planetary Radio’s 20 years.

Artemis astronauts on the Moon

It’s Not Just NASA: Space Agency Leaders at the Artemis 1 Launch Attempt

Leaders of several major, international space agencies talked with host Mat Kaplan during the first attempt to launch the Artemis 1 Moon mission.

Artemis 1 countdown clock

Countdown to Artemis, The Return to the Moon

Join Mat Kaplan and Planetary Society colleagues in Florida for the first attempt to launch the Space Launch System rocket on a mission to the Moon.