In Orbiter Processing Facility 3 at NASA's Kennedy Space Center look at tiles on the underside of Discovery.

In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 Mission Specialists John "Danny" Olivas (left) and Nicole Stott (right) look at tiles on the underside of space shuttle Discovery. At center, Mission Specialist Christer Fuglesang holds a camera. The crew is at Kennedy for a crew equipment interface test, or CEIT, which provides hands-on training and observation of shuttle and flight hardware. The STS-128 flight will carry science and storage racks to the International Space Station on Discovery. Launch is targeted for Aug. 7. Photo credit: NASA/Jim Grossmann