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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Atmospheric scientist Mark Lemmon discusses the beautiful clouds on Mars imaged by NASA's Curiosity rover.
Scattered Clouds and Fog...On Mars
An exciting update from the Phoenix Mars Lander team, with further insights from Emily Lakdawalla. Bill Nye also celebrates Phoenix.