Astronauts install European Columbus laboratory during the first STS-122 mission spacewalk

NASA astronauts Stanley Love and Rex Walheim work nearly 8 hours outside the International Space Station to install the European Columbus laboratory during the first spacewalk of the STS-122 mission on February 11, 2008. Their tasks included preparation of the Columbus laboratory for transfer from Space Shuttle Atlantis' payload bay to the starboard side of the Station's Harmony module. (UPI Photo/ESA/NASA)