Apollo 9 astronaut Dave Scott in the open hatch of the Apollo 9 spacecraft on March 6, 1969.
The view from above.
Orbital art by Alexei Leonov, Bruce Pennington, Chris Foss, and Pamela Lee.
Looking down at Earth from the ISS on this day in 2013.
Sunsets in space, as seen from the ISS, 2007-2010.
Earth and Moon, as seen from the International Space Station on September 4, 2010. (NASA)