The Countdown is a biweekly video show highlighting the best stuff happening in space, astronomy and physics. In this episode: Virgin Galactic Powers Up, One-Way Ticket to Mars, Canadian Space Antics, Saturn Hurricane, Antarctica's Supernova Sand.
Deadline: Dec 11 2013
Reward: $52,000 USD
Deadline: Jan 11 2014
Reward: $20,000 USD
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