PIX4603160 The International Space Station (ISS) 05/2011 - The International Space Station (ISS) 05/2011 - View of the International Space Station from Space Shuttle Endeavour at the end of the STS mission - 134 on 29 May 2011. Backdropped by the blackness of space, the International Space Station is featured in this image photographed by an STS - 134 crew member on the space shuttle Endeavour after the station and shuttle began their post - undocking relative separation. Undocking of the two spacecraft occurred at 11:55 p.m. (EDT) on May 29, 2011. Endeavour spent 11 days, 17 hours and 41 minutes attached to the orbiting laboratory by .; (add.info.: The International Space Station (ISS) 05/2011 - The International Space Station (ISS) 05/2011 - View of the International Space Station from Space Shuttle Endeavour at the end of the STS mission - 134 on 29 May 2011. Backdropped by the blackness of space, the International Space Station is featured in this image photographed by an STS - 134 crew member on the space shuttle Endeavour after the station and shuttle began their post - undocking relative separation. Undocking of the two spacecraft occurred at 11:55 p.m. (EDT) on May 29, 2011. Endeavour spent 11 days, 17 hours and 41 minutes attached to the orbiting laboratory); Photo ?? NASA/Novapix; .