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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Planetary Radio Extra: Shining a Million Watt Flashlight on an Asteroid

PlanRad’s celebration of Asteroid Day (June 30th) continues as we call UCLA grad student Adam Greenberg at the Arecibo Observatory in Puerto Rico.

Discovered: Titan's Magic Island

Cornell grad student Jason Hofgartner reports on the discovery of what appears (and disappears!) to be an island on one of Titan’s frigid lakes.

Alyssa Rhoden and the Rise of the Europa Underground

Alyssa Rhoden studies Jupiter’s moon Europa…from a distance. She, many other scientists and millions of space exploration fans around the globe want to see a mission to this ice world that hides a vast, warm ocean. That’s why she and several colleagues have created Destination: Europa, and they want your help.

NASA's Charlie Bolden Visits Earth Missions at JPL

Two missions are coming together in a high bay clean room at the Jet Propulsion Laboratory. SMAP and ISS RapidScat went on display for a visit by NASA Administrator Charles Bolden. Mat Kaplan and Emily Lakdawalla provide special coverage.

2012 DA14--Coming Soon to a Planet Near You!

The 45-meter Near Earth Asteroid flies by on February 15. NASA brought together asteroid experts to discuss it and others of its threatening kind.