Want to go to space? First, you must live in this dome for 2 years.

In 1991, four men and four women sealed the hatch on a 3.15-acre ecological ark located an hour north of Tucson, Arizona. They called the structure Biosphere 2 (Biosphere 1 being planet Earth, itself). Their scientific mission: to live inside their artificial ecosystem, removed from the rest of the world, for 24… »6/04/13 4:40pm6/04/13 4:40pm

Why the Mars500 mission doesn't prove we're psychologically capable of a trip to Mars

Space travel is a cramped and isolating endeavor, one that can weigh heavily on the mind of a spacefarer. How well we handle conditions like these over long periods of time is something we must consider more seriously in the years ahead, as humanity looks to venture deeper into space than we've ever been. »11/03/11 3:43pm11/03/11 3:43pm