201108160008hq (16 Aug. 2011) --- Stephen Colbert, host of The Colbert Report, salutes the crew of STS-135, seated from lower left, NASA astronauts Chris Ferguson, commander; Doug Hurley, pilot; Sandy Magnus and Rex Walheim, both mission specialists, during their appearance for a taping of his television show, Aug. 16, 2011, in New York. The astronauts from STS-135 are in New York for a three-day visit. Photo credit: NASA/Paul E. Alers