Mars Exploration Rover Project Manager John Callas

from Planetary Radio: Space Exploration, Astronomy and Science · host The Planetary Society

John Callas reports on Spirit and Opportunity, Bill Nye debates the future of humans on the Moon, and Bruce Betts looks to the Perseid meteor shower in his What's Up review of the night sky.Learn more about your ad choices. Visit megaphone.fm/adchoicesSee omnystudio.com/listener for privacy information.See omnystudio.com/listener for privacy information.

Episode metadata supplied by the publisher feed · Published Jul 27, 2009

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Mars Exploration Rover Project Manager John Callas

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