STS_135_STA

A Shuttle Training Aircraft (STA) piloted by NASA astronaut Chris Ferguson, STS-135 commander, is seen against the late afternoon sun as the crew of the final space shuttle mission practices landings at the Kennedy Space Center on Tuesday, May 31, 2011, in Florida. ( NASA Photo / Houston Chronicle, Smiley N. Pool ).

JSC2011-E-059482 (31 May 2011) --- A Shuttle Training Aircraft (STA) piloted by NASA astronaut Chris Ferguson, STS-135 commander, is seen against the late afternoon sun as the crew of the final space shuttle mission practices landings at NASA?s Kennedy Space Center in Florida May 31. Photo credit: NASA Photo/Houston Chronicle, Smiley N. Pool