article_snippet: The second experiment being run at both sites will test how our eyes adapt to four months of outside darkness and artificial lighting.
article_snippet: remote location means the scientists have been able to see the stunning .
article_snippet: Home from home: The modules include house labs, a dining room, a bar and a gym .
article_snippet: Linked: the scientists do not need to go outside to move between modules as the scientists will be joined together by walkways .