'Ready to come out?' Scientists emerge after year 'on Mars'

A team of four have spent the past 378 days sealed inside the 'Martian' habitat in Houston, Texas, part of NASA's research into what it will take to put humans ...
The NASA astronaut knocks loudly three times on what appears to be a nondescript door and calls cheerfully: "You ready to come out?" The reply is inaudible, bu... Read More