The Colbert Report Mon – Thurs 11:30pm / 10:30c John Grunsfeld www.colbertnation.com Colbert Report Full Episodes Political Humor & Satire Blog Video Archive NASA Chief Scientist John Grunsfeld took Stephen Colbert’s “Colbert Report” audience on a guided tour through the seven minutes of terror that the Curiosity rover will endure to land on Mars, and [...]

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