JSC2010-E-185481 (10 Nov. 2010) --- NASA astronauts Doug Hurley (left), STS-135 pilot; and Rex Walheim, mission specialist, participate in a food tasting session in the Habitability and Environmental Factors Office at NASA's Johnson Space Center. STS-135 is planned to be the final mission of the space shuttle program. Photo credit: NASA or National Aeronautics and Space Administration