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 7th International Conference on Mars

500 members of Earth's Mars appreciation club gathered at CalTech in Pasadena, California last week. Scientists presented the latest research on Mars.

Solar Sail Countdown

Solar Sail Countdown

A Microphone on Mars?

What would you sound like on Mars? Berkeley researcher Greg Delory and the Planetary Society have developed the Mars Microphone, so that we can find out.