Astronaut Chris Hadfield on a spacewalk, mission STS-100

2001-04-22 - Canadian Space Agency astronaut Chris Hadfield, STS-100 mission specialist, peers into the crew cabin of the Space Shuttle Endeavour during a lengthy spacewalk to install Canadarm2 on the International Space Station (ISS). The Pressurized Mating Adapter (PMA-2), which temporarily anchors the orbital outpost to the Shuttle, can be seen behind him. (Credit: NASA)