Planetary Radio

Let The Planetary Society’s weekly podcast take you to the outer reaches of the Solar System and beyond. Host Sarah Al-Ahmed visits with scientists, engineers, mission leaders, astronauts, advocates, and writers who provide their unique and exciting perspectives on the exploration of our universe. New episodes are published every Wednesday.

We are proud to feature Planetary Radio: Space Policy Edition on the first Friday of every month. The Planetary Society's Chief of Space Policy Casey Dreier dives deep into the policy and politics behind what we do and where we go in space.

You can also enjoy Planetary Radio: Book Club Edition every month. Hosted by the creator of Planetary Radio and The Planetary Society's Senior Communications Adviser, Mat Kaplan, the Book Club Edition podcast features discussions with authors of space-themed books

Latest Episodes

3I/ATLAS: The third interstellar object ever found

Astronomers have discovered a new interstellar comet, 3I/ATLAS, the third object ever seen entering our Solar System from another star. We speak with Bryce Bolin, research scientist at Eureka Scientific, about what makes this visitor unique and what it can teach us about other worlds.

Space Policy Edition: Is this the moment for in-space nuclear power?

Dr. Bhavya Lal argues that the 2020s are a decisive decade for in-space nuclear power. Without nuclear, humans may never be more than visitors on Mars or the Moon.

The science of sleep in space

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.

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Online & On the Air

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Sarah Al-Ahmed portrait
Planetary Radio Host Sarah Al-Ahmed is the host of Planetary Radio, The Planetary Society’s renowned, weekly space podcast and radio program.Image: The Planetary Society