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.

Search Planetary Radio

Space Policy Edition: Mars via the Nuclear Option

NASA’s Bhavya Lal returns to explain the challenges and big advantages of nuclear propulsion in space.

Space Policy Edition: A Trillion-Dollar Space Economy?

How big is the space economy, and how big might it grow? Space policy expert Dr. Bhavya Lal brings the numbers down to Earth in a great conversation with Casey Dreier.