Here's a cool inside look at NASA's "Mars Chamber", a refrigerator-sized box that can recreate the "temperatures, pressures, and atmosphere of the Martian surface, essentially creating a Mars environment on Earth," NASA says.
I'm pretty sure that you can't put people in the box yet. Maybe in a few years they'll make a bigger box.
Keith Shaw rounds up the best in geek video in his ITworld.tv blog. Follow Keith on Twitter at @shawkeith. For the latest IT news, analysis and how-tos, follow ITworld on Twitter, Facebook, and Google+.