Four volunteers have emerged from NASA's simulated Mars environment after more than a year spent on a mission that never actually departed Earth. The volunteer crew members spent more than 12 months ...

Add Yahoo as a preferred source to see more of our stories on Google. The crew of a NASA mission to Mars emerged from their craft after a yearlong voyage that never left Earth. The four volunteer crew ...

HOUSTON (AP) — The crew of a NASA mission to Mars emerged from their craft after a yearlong voyage that never left Earth. The four volunteer crew members spent more than 12 months inside NASA's first ...

In this image made from video, NASA Deputy Director Flight Missions Kjell Lindgren (center) speaks in front of the crew members of the first CHAPEA mission (from left to right) Kelly Haston, Ross ...

The crew of a NASA mission to Mars emerged from their craft after a yearlong voyage that never left Earth. The four volunteer crew members spent more than 12 months inside NASA’s first simulated Mars ...