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Planetary RadioDecember 7, 2009

A MESSENGER Mercury Mission Update From Sean Solomon

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Sean Solomon
Sean Solomon

Principal Investigator for MESSENGER, Columbia University

The principal investigator for the first spacecraft that will orbit Mercury returns with a mission update. Emily Lakdawalla begins her new series of planetary science news conversations with Mat Kaplan. Bill Nye has news of plans for a human mission to an asteroid. Bruce Betts celebrates December with a new What's Up space trivia contest.

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