Program Archives

PLANETARY RADIO LIVE CONTINUES! WITH JOHN CALLAS OF THE MARS EXPLORATION ROVERS AND JOY CRISP OF THE MARS SCIENCE LABORATORY
January 2, 2012
Guests: John Callas, Joy Crisp, Bill Nye
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Here's the second half of our December show recorded in front of a live audience. It has much more about Opportunity nearing its 8th anniversary exploring the Red Planet, and about Curiosity, the...  more »

PLANETARY RADIO LIVE! WITH JOHN CALLAS OF THE MARS EXPLORATION ROVERS AND JOY CRISP OF THE MARS SCIENCE LABORATORY
December 26, 2011
Guests: John Callas, Joy Crisp, KJ Williams
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We once again go before a live audience for an all Mars rover show. You'll hear the latest about Opportunity nearing its 8th anniversary exploring the Red Planet, and about Curiosity, arriving on...  more »

MARS ROVER PROJECT MANAGER JOHN CALLAS
February 1, 2010
Guests: John Callas
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John Callas returns to tell us why, after six years, an end to Spirit's roving does not mean the end of her work on the red planet. Emily Lakdawalla looks to the other side of Mars where Opportunity...  more »

MARS EXPLORATION ROVER PROJECT MANAGER JOHN CALLAS
July 27, 2009
Guests: John Callas
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Spirit is stuck in the sands of Mars. Opportunity is racing toward Endeavour Crater. Their boss, John Callas, reports on both rovers that have made the red planet their home for more than five...  more »

MARS EXPLORATION ROVER PROGRAM MANAGER JOHN CALLAS
November 19, 2007
Guests: John Callas
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Hard to believe it has been almost four years (and two Martian years) since the first Mars Exploration Rover crawled onto the surface of the Red Planet. John Callas of JPL provides a status report...  more »