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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Life on Mars...and Earth

We visit Harvard biologist Andrew Knoll for a conversation about finding life on the red planet. Emily Lakdawalla is seeing red on another of Earth's neighbors, and Bruce Betts spins a tale of Death Stars, cockroaches and trivia contests on What's Up!

Getting a Rover's-Eye View of Mars

Hear excerpts of the Mars Exploration Rover imaging team lead Jim Bell's presentation last week at Planetary Society headquarters; Emily looks for life on the moon, while Bruce Betts says to get ready for this week's lunar eclipse!

Columbia Experiment Recovered!

Columbia Experiment Recovered!

Deep Space 1 / ET Phones Home!

Deep Space 1 / ET Phones Home!

A Visit With Sir Arthur C. Clarke

A Visit With Sir Arthur C. Clarke

[email protected] Aims Arecibo at the Best ET Candidates

[email protected] Aims Arecibo at the Best ET Candidates

Life in the Extreme

Life in the Extreme

Optical SETI Has an Eye for Extraterrestrial Messages

Optical SETI Has an Eye for Extraterrestrial Messages

Interview with Freeman Dyson

Interview with Freeman Dyson

Planetary Radio Looks at SETI

Planetary Radio Looks at SETI

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