S128-E-009793 (8 Sept. 2009) --- Backdropped by Earth's horizon and the blackness of space, the International Space Station is seen from Space Shuttle Discovery as the two spacecraft begin their relative separation. Earlier the STS-128 and Expedition 20 crews concluded nearly nine days of cooperative work. Undocking of the two spacecraft occurred at 21:26 CEST on 8 September 2009.