Program Archives

ARE THERE GIANT CAVES ON MARS?
June 18, 2007
Guests: Glen Cushing, Wendy Jaeger, Tim Titus
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Their discoverers call them the seven sisters. Are these holes in Mars merely very deep pits, or are they skylights opening on huge caves? Glen Cushing, Windy Jaeger, and Tim Titus of the United...  more »

MARS EXPRESS CONFIRMS LOTS OF POLAR ICE! WHERE'S THE REST?
March 26, 2007
Guests: Jeffrey Plaut
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Jet Propulsion Lab Principal Scientist Jeffrey Plaut is also a Co-Principal Investigator on the MARSIS radar carried by the European Space Agency's Mars Express Orbiter. He talks about what the...  more »

EUROPE'S ROSETTA ON ITS WAY TO A COMET
March 12, 2007
Guests: Gerhard Schwehm
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Project Scientist Gerhard Schwehm reports on Rosetta's recent successful flyby of Mars and what's in store for the spacecraft even before it goes into orbit around a comet and launches a lander. ...  more »

JPL'S TIM PARKER: THE LOCALIZER
February 19, 2007
Guests: Tim Parker
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Want to find your Mars lander? Start by calling JPL geologist Tim Parker, who has a knack for this kind of thing. Tim also originated the "Mars Ocean" hypothesis years ago, and he directs JPL's...  more »

LIKE BEING THERE: "POSTCARDS FROM MARS" BY JIM BELL
February 12, 2007
Guests: Jim Bell
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Cornell professor Jim Bell returns to Planetary Radio to help us explore his new mammoth collection of images from the Mars Exploration Rovers.  more »

FORMER NASA ASSOCIATE ADMINISTRATOR WES HUNTRESS FOLLOWS THE WATER
January 8, 2007
Guests: Wes Huntress
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Wes Huntress served as Associate Administrator for Space Science at NASA as the "follow the water" theme was created for Mars exploration. He also participated in the genesis and early years of the...  more »

KEN EDGETT, FIRST TO SEE NEWLY-FORMED CRATERS AND EVIDENCE OF FLOWING WATER ON MARS
December 18, 2006
Guests: Ken Edgett
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As a staff scientist for Malin Space Science Systems, Ken Edgett has viewed everyone of the more than 240,000 images returned by the Mars Global Surveyor. He was first to notice a black spot that...  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 »

BACK TO THE ARCTIC...IN A SPACESUIT!
September 4, 2006
Guests: Jake Maule, Andrew Steele
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A satellite telephone report from Andrew Steele and Jake Maule of AMASE (Arctic Mars Analoge Svalbard Expedition). Maule wore a new design of spacesuit during much of the just-completed expedition,...  more »