6 Scientists Just Spent A Year On Fake Mars. Here's What They Learned.

HONOLULU, Hawaii ― Sending humans to Mars presents enormous challenges, from the technological to the psychological. Perhaps no one understands the mental test better than the team of international scientists who just spent a year living inside an isolated, Mars-like habitat atop Hawaii’s Mauna Loa volcano. Sheyna Gifford, chief medical and safety officer of the fourth Hawaii Space Exploration and Analog and Simulation, or HI-SEAS, told The Huffington Post that the biggest challenges came...