Program Archives

CHARLEY KOHLHASE: ENGINEER, ARTIST, CASSINI MISSION DESIGNER
May 3, 2004
Guests: Charley Kohlhase
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Charley Kohlhase has gone eleven for eleven in a JPL career stretching over four decades. That's eleven successful missions, including Voyager 1 and 2. With Cassini-Huygens nearly at Saturn, we enjoy...  more »

RAY BRADBURY RETURNS!
April 26, 2004
Guests: Ray Bradbury
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The beloved writer was guest of honor at the April 12, 2004 Los Angeles celebration of Yuri's Night. Hear him exclusively on Planetary Radio. Also the heads of two space advocacy groups, Emily...  more »

MAGNETS ROVING ON MARS
April 19, 2004
Guests: Walter Goetz
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They're small and simple, but the strategically located magnets on the Mars Exploration Rovers are telling us more about the red planet. Hear about them this week, along with six degrees of Bruce...  more »

CELEBRATE WITH THE MARS EXPLORATION ROVER TEAM
April 12, 2004
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With lots to celebrate, The Planetary Society threw a party for the scientists and engineers who have made Spirit and Opportunity such amazing successes, and you're invited! This special edition of...  more »

LIFE ON MARS...AND EARTH
April 5, 2004
Guests: Andrew Knoll
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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...  more »

A SALTY SEA ON MARS
March 29, 2004
Guests: Ken Herkenhoff
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Mars Exploration Rover Opportunity has returned conclusive evidence that water once flowed over the Meridiani Planum. The probe's Microscopic Imager had a big part in this discovery. We talk with the...  more »

FAR OUT SEDNA
March 22, 2004
Guests: Mike Brown
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It's big, and it orbits farther from the sun than any solar system object yet discovered. CalTech's Mike Brown and his co-discoverers want to name it Sedna, after the Inuit goddess of the cold deeps....  more »

DEFENDING EARTH FROM ASTEROIDS
March 15, 2004
Guests: Alan Harris
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Alan Harris is one of many scientists working to protect our little planet from the kind of rock that may have knocked off the dinosaurs. Hear his thoughts on this week's show. Emily Lakdawalla...  more »

CONFIRMED: WATER WAS ON MARS!
March 8, 2004
Guests: Ben Clark
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The Mars Exploration Rover science team has conclusively announced that there was once water, and lots of it, on Mars' Meridiani Planum. Our guest this week helped make this momentous discovery. Ben...  more »

JIM BELL, THE PANCAM MAN!
March 1, 2004
Guests: Jim Bell
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The Pancams on the Mars Exploration Rovers are returning images that with three times the resolution of any before. Planetary Radio talks with their developer, Jim Bell. We also feature the last pair...  more »