This Aug. 9, 2015 photo provided by the University of Hawaii shows the interior of the domed structure that will house six researchers for eight months in an environment meant to simulate an expedition to Mars, on Mauna Loa on the Big Island of Hawaii. The group will enter the dome Thursday, Jan. 19, 2017, and spend eight months together in the 1,200 square foot research facility in a study called Hawaii Space Exploration Analog and Simulation (HI-SEAS). They will have no physical contact with any humans outside their group, experience a 20-minute delay in communications and are required to wear space suits whenever they leave the compound. (Sian Proctor/University of Hawaii via AP)
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