Tags: Artificialsatellite, Satellite.
STS-135 (ISS assembly flight ULF7) was the 135th and final mission of the American Space Shuttle program. It used the orbiter Atlantis and hardware originally processed for the STS-335 contingency mission which was not flown. STS-135 launched on 8 July 2011 and landed on 21 July 2011 following a one-day mission extension. The four-person crew was the smallest of any shuttle mission since STS-6 in April 1983.
