"The lids off!" he excitedly Tweets.
Robonaut is the first humanoid robot in space. The humanoid was boxed up in August but his flight to space was delayed by repeated setbacks in the launch of the Discovery shuttle.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.