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John Callas

Latest Planetary Radio Appearance

Planetary Radio LIVE Continues! With John Callas of the Mars Exploration Rovers and Joy Crisp of the Mars Science Laboratory

01/02/2012 | 0:28:50
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Here's the second half of our December show recorded in front of a live audience: Mars rover updates, two more spacey songs from KJ Williams, and the big finish of Emily Lakdawalla's proof that she is not covering up evidence of aliens in our solar system! You'll also hear a brand new What's Up segment from Bruce Betts and Mat Kaplan.

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