photo of the day
Astronauts Mark Vande Hei and Randy Bresnik (right) emerge from the International Space Station on Tuesday. The two astronauts went out on a spacewalk to grease the robot arm's new hand.
Astronauts Mark Vande Hei and Randy Bresnik (right) emerge from the International Space Station on Tuesday. The two astronauts went out on a spacewalk to grease the robot arm's new hand.