Discovery on Approach to ISS during the STS-131 Mission

ISS023-E-022374 (7 April 2010) --- The underside of space shuttle Discovery is featured in this image photographed by an Expedition 23 crew member as the shuttle approaches the International Space Station during STS-131 rendezvous and docking operations. Docking occurred at 2:44 a.m. (CDT) on April 7, 2010.