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While in space, astronauts may see a sunrise and sunset every 45 minutes. Astronaut Ron Garan took this image of a sunset from the Space Station. | NASA/Ron Garan
Tech

Military Wants Keys to Biological Clock

The military wants the keys to the biological clock. Find out what the military is doing in order to acquire the keys to the biological clock.

March 28, 2012
3:00 AM EDT

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