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Each week, Planetary Radio visits with a scientist, engineer, project manager, advocate or writer who can provide a unique perspective on the quest for knowledge about our solar system and beyond. We also showcase regular features that raise your space IQ while they put a smile on your face.

Planetary Radio now airs on radio stations across the USA. We hope to add many more stations in the coming months. Let us know if there is a public radio station near you that should have Planetary Radio on its schedule.

Questions or comments? Email us at planetaryradio@planetary.org

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This Week’s Show


JUT WYNNE IN THE CAVES OF THE ATACAMA August 18, 2008
Guests    J. Judson Wynne
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USGS Speleologist J. Judson Wynne joins us via Iridium satellite phone as he prepares to enter...  more »



Recent Shows

DAVID MORRISON OF NASA'S LUNAR SCIENCE INSTITUTE AND JACK GREGG ON THE LUNAR REGOLITH CHALLENGE
August 11, 2008
Guests: David Morrison, Jack Gregg
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Distinguished scientist David Morrison of NASA's Lunar Science Institute, while Jack Gregg heads speaks about the 2nd Lunar Regolith Challenge.  more »

PHOENIX MARS LANDER UPDATE: TASTE THE WATER!
August 4, 2008
Guests: Michael Meyer, Peter Smith, Bill Boynton, Victoria Hipkin, Mark Lemmon
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An exciting update from the Phoenix Mars Lander team, with further insights from Emily Lakdawalla. Bill Nye also celebrates Phoenix.  more »

OBSERVING EARTH WITH SPACE STUDIES BOARD CHAIR CHARLES KENNEL
July 28, 2008
Guests: Charles Kennel
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As part of our newly-expanded coverage of our own planet, former Director of the Scripps Institution of Oceanography Charlie Kennel shares his concern about the future of the Earth observation...  more »

ASTONISHING MERCURY, WITH MESSENGER PRINCIPAL INVESTIGATOR SEAN SOLOMON
July 21, 2008
Guests: Sean Solomon
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When the MESSENGER spacecraft flew by Mercury in January, it gave us the first up close look in nearly thirty-three years. PI Sean Solomon returns to tell us about the amazing data gathered during...  more »

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