Mars Or Bust: Putting Humans On The Red Planet

January 20, 2014 12:40 AM

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hide captionTracks from NASA's Opportunity rover disappear toward the horizon on the Meridiani Plains of Mars. The rover has been on the planet since 2004.

"I don't know why you're on Mars, but whatever the reason for going to Mars is, I'm glad you're there and I wish I was with you."

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