On August 5th (or 6th, depending on your time zone) NASA plans to land the Curiosity rover on Mars. First, they'll have to overcome incredible speeds and the Martian atmosphere. Scientific American editor John Matson explains how.
Deadline: Jun 30 2013
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This is a Reduction-to-Practice Challenge that requires written documentation and&
Deadline: Jul 30 2013
Reward: $100,000 USD
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