Planetary Radio: Space Exploration, Astronomy and Science


Planetary Radio brings you the human adventure across our solar system and beyond. We visit each week with the scientists, engineers, leaders, advocates and astronauts who are taking us across the final frontier. Regular features raise your space IQ while they put a smile on your face. Join host Mat Kaplan and Planetary Society colleagues including Bill Nye the Science Guy, Bruce Betts, and Emily Lakdawalla as they dive deep into the latest space news. The monthly Space Policy Edition takes you inside the DC beltway where the future of the US space program hangs in the balance. Visit for the space trivia contest, an episode guide, and much more.


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Title: Crew Dragon Deep Dive with Astronaut Garrett Reisman

Crew Dragon Deep Dive with Astronaut Garrett Reisman

May 20th, 2020

Engineer and former astronaut Garrett Reisman spent four months on the International Space Station before moving to SpaceX. Ten years of work at the company… Go to Episode

Looking for Life in Alien Oceans

May 13th, 2020

Jet Propulsion Lab astrobiologist Kevin Hand has just written Alien Oceans: The Search for Life in the Depths of Space. Kevin and Mat explore these seas… Go to Episode

The Crew Dragon Countdown Begins, With Former NASA Deputy Administrator Lori Garver

May 6th, 2020

Lori Garver may have been the strongest advocate of commercial space development in her days at NASA. Now one of that program’s greatest goals is about… Go to Episode

Space Policy Edition: Our Moral Obligation to Explore Space

May 1st, 2020

Are we morally obligated to pursue space exploration? What ethical considerations should we consider when creating space policy? Philosopher James Schwartz… Go to Episode