Program Archives

NASA'S CHIEF SCIENTIST ON THE VISION FOR SPACE EXPLORATION
September 26, 2005
Guests: James Garvin, Louis Friedman
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NASA's Jim Garvin comments on the agency's just announced plans for human exploration and new spacecraft. Also Lou Friedman, Q&A on craters throughout the solar system, and Bruce Betts with a new What's Up contest.  more »

THE PIONEER ANOMALY: A MYSTERY IN DEEP SPACE
September 5, 2005
Guests: Slava Turyshev, John Anderson
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Pioneer 10 left Earth in 1972 to make history in the outer solar system. Why isn't the little probe where it's supposed to be? Guests John Anderson and Slava Turyshev talk about their investigation...  more »

A TOUR OF THE SOLAR SYSTEM WITH BILL HARTMANN
August 22, 2005
Guests: William Hartmann
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The world renown artist, author and planetary scientist talks about the beautiful, just-published third edition of "The Grand Tour--A Traveler's Guide to the Solar System." Emily Lakdawalla is...  more »

COSMOS 1: SOLAR SAIL SPECIAL REPORT
June 27, 2005
Guests: Louis Friedman
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We review last week's launch of Cosmos 1, the uncertain status of the spacecraft, and the future of solar sailing by the Planetary Society. You'll hear Project Director Lou Friedman, Emily...  more »

SOLAR SAIL COUNTDOWN
June 20, 2005
Guests: Greg Delory, Louis Friedman
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We get a last-minute update on Cosmos 1 from Project Director Lou Friedman, just before its launch into orbit. Science and Data Systems Coordinator Greg Delory looks at the complexity of the mission....  more »

MOVE OVER HUBBLE: THE SPITZER SPACE TELESCOPE
June 13, 2005
Guests: B. Thomas Soifer
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The Spitzer Space Telescope is opening our eyes to the wonders of the universe that are only revealed in infrared light. We talk with B. Thomas Soifer, Director of the Spitzer Science Center. Emily...  more »

SAVING VOYAGER
May 30, 2005
Guests: Ed Stone
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Former JPL Director and Voyager Interstellar Mission Chief Scientist Ed Stone talks about the effort to save the spacecraft as they return data from the edge of the solar system. Emily has a vacation...  more »

ERA OF SOLAR SAILING BEGINS
May 23, 2005
Guests: Ann Druyan, Louis Friedman
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The launch of Cosmos 1 will also launch the era of solar sailing. With just a month left before liftoff, Project Manager Lou Friedman provides an update. Carl Sagan's widow and former collaborator...  more »

NEIL DEGRASSE TYSON ON THE FUTURE OF SPACE EXPLORATION
March 21, 2005
Guests: Neil deGrasse Tyson
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Director of New York's Hayden Planetarium and host of the NOVA Origins miniseries returns to Planetary Radio for a conversation about the moon, Mars and beyond. He also gives positive marks to the...  more »

CHASING VOLCANOES AROUND THE SOLAR SYSTEM
March 14, 2005
Guests: Rosaly Lopes
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Planetary scientist and leading volcanologist Rosaly Lopes talks about her two new books, one about volcanoes everywhere in the solar system, and one that's a travel guide to both active and dormant...  more »