Program Archives

HONORING RAY BRADBURY, MARS PHOTOGRAPHER
July 23, 2007
Guests: Ray Bradbury, Phil Christensen, Louis Friedman
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The Planetary Society recently sponsored a special benefit performance of Ray Bradbury's hit play, Green Town. Ray was presented with a beautiful image of a spot on Mars he had selected for imaging....  more »

SPECIAL COVERAGE: LIQUID WATER AND NEW CRATERS DISCOVERED ON THE SURFACE OF MARS
December 11, 2006
Guests: Phil Christensen, Ken Edgett
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When we produced last week's tribute to the Mars Global Surveyor we had no idea its two biggest discoveries were about to be announced! You'll hear about them from Ken Edgett and Mike Malin of Malin...  more »

A SALUTE TO THE MARS GLOBAL SURVEYOR WITH PHIL CHRISTENSEN
December 4, 2006
Guests: Phil Christensen
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Mars Global Surveyor is gone but not forgotten. Principal Investigator Phil Christensen examines the stunning legacy of a ten-year mission that mapped all of the Red Planet and found evidence of...  more »

OPPORTUNITY REACHES ENDURANCE CRATER ON MARS
May 10, 2004
Guests: Phil Christensen
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Mars Exploration Rover has reached its latest goal. You'll hear Steve Squyres at a JPL press briefing announcing its arrival, and Phil Christensen of Arizona State will tell us why Endurance Crater...  more »

PHIL CHRISTENSEN EXPLORES MARS IN THE INFRARED
May 26, 2003
Guests: Phil Christensen
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Planetary geologist Phil Christensen heads Arizona State University's Mars Space Flight Facility, and leads the exploration of Mars through infrared spectrometry. He shares what he has learned with...  more »