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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The Search for Extraterrestrial Polluters?

Harvard’s Henry Lin led work that determined the soon-to-be-launched James Webb Space Telescope may be able to detect an alien civilization by analyzing its atmosphere.

Alaskan Aurora Adventure!

Join Mat Kaplan and other Aurora “virgins” as they seek the Northern Lights in Fairbanks, Alaska, and meet retired rocketeer and Director of the Poker Flat Research Range, Neal Brown

A Planetary Radio Special Feature: NASA Unveils Its Proposed FY2015 Budget

NASA unveiled its 2015 budget plans in a March 4 media briefing. Minutes later, Planetary Radio host Mat Kaplan got an enlightening and engaging analysis from Planetary Society Director of Advocacy Casey Dreier. You’ll hear about the winners, the losers, and the uncertain futures of many NASA initiatives and missions.

Getting Humans to Mars Without Breaking the Bank

NASA scientist Harley Thronson tells us about a new initiative that is figuring out how we will get men and women to the red planet at a reasonable price. You can read their initial report. Emily Lakdawalla reports on Curiosity’s passage over dunes that made engineers nervous. Bill Nye reveals NASA’s plans for a lunar rover that may launch in 2018. Mat Kaplan joins Bruce Betts in a TV studio to record this week’s What’s Up segment. You can watch!

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.

Taikonauts on the Moon? A Conversation With Leonard David

Leonard David has been writing about space exploration for more than five decades. Now he has turned his attention to China’s ambitious plans.

More Planetary Radio Live at the Aquarium of the Pacific: Oceans Everywhere

We return to the Aquarium for much more of our conversation about seas on Earth and seas on other worlds, featuring Dave Bader, Kevin Hand and Bill Nye. Emily Lakdawalla concludes her video tour of Curiosity's cameras and instruments.

Mae Jemison of the 100 Year Starship Initiative

Retired astronaut Dr. Mae Jemison leads the 100 Year Starship Initiative. You’ll hear Mat’s conversation with her about this ambitious project in a SETIcon II fireside chat.

Visiting the Spacecraft Technology Expo

Spaceplanes, spacesuits and rockets, oh my! Mat Kaplan talks to exhibitors and others at the first ever Spacecraft Technology Expo in Los Angeles.

Cutting-edge Approaches to Protecting Interplanetary Astronauts

As if extremes of temperature and lack of air weren’t enough! Some scientists believe it’s space radiation that will keep humans from venturing deep into our solar system. Not so, say three teams of NASA Innovative Advanced Concepts (NIAC)-funded researchers. Each is exploring a cutting-edge approach to protecting astronauts on their way to Mars and other destinations.

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