Subscribe to Science Channel! | http://www.youtube.com/subscription_center?add_user=sciencechannelRussian students on a snowy expedition mysteriously abandon camp and die of hypothermia a short distance away. Detectives use clues to piece together what may have happened. | For more Dark Matters, visit http://science.discovery.com/tv/dark-matters/#mkcpgn=ytsci1
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