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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Space Policy Edition: When a (Space) Cowboy Came to Washington

Historian John Logsdon discusses his new book, Ronald Reagan and the Space Frontier It explores the legacy of the 40th president’s major space policy decisions. We look at four major topics: early efforts at commercializing space, the survival crisis for planetary exploration, the Space Shuttle, and the decision to build the space station.

At the Space Settlement Summit With Former NASA Administrator Charlie Bolden

He led NASA for eight years, but not till he had flown on four Space Shuttle missions and enjoyed a long military career. Charlie Bolden talks with Mat about his time at the space agency and where we’re headed on the final frontier.

Space Policy Edition: How NASA Came to Be

Happy 60th, NASA. In celebration of the space agency’s birthday, we do the audio equivalent of pulling out NASA’s baby book and explore its origin story.

John Logsdon and the Dawn of the Space Age

The Dean of space policy, John Logsdon, returns with stories and a new book of original documents that shaped the US space program from the birth of NASA to SpaceX. Planetary Society CEO Bill Nye reports in from this year’s International Astronautical Congress in German, while Senior Editor Emily Lakdawalla wraps up a working tour of New Zealand. Then join Bruce and Mat for this week’s What’s Up.

Big Science, Big Rocket at the Marshall Space Flight Center

Mat Kaplan’s Huntsville, Alabama trip wraps up with a tour of the historic and history-making Marshall Space Flight Center. Join him at the control center for research underway on the International Space Station, under a tent where a critical component of the Space Launch System rocket is getting finishing touches, in a conversation about the Fermi spacecraft’s search for the universe’s biggest explosions, and with the Center’s Associate Director for Technical efforts.

A Big Test for LightSail 2

The Planetary Society’s solar sail spacecraft was in the middle of a critical test as we spoke with the Society’s Bruce Betts and Jason Davis.

Curiosity Sniffs Martian Air/Shuttle Endeavour Opens to the World

Scientists have revealed the first data gathered by Curiosity, the Mars Science Laboratory Rover, about the Martian atmosphere, while Space Shuttle Endeavour has opened to the public.

Curiosity Finds a Martian Stream Bed and Endeavour Flies Home

Emily Lakdawalla reports on Curiosity's discovery of an ancient stream bed, and Endeavour flies over the California plant where it was built.