CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 mission Commander Rick Sturckow checks out the cockpit window of space shuttle Discovery. 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 crew members are lowered into space shuttle Discovery's payload bay. Being lowered are, at left, Mission Specialist Patrick Forester and, at right, Pilot Kevin Ford. 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

CAPE CANAVERAL, Fla. –In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 crew members check out the space shuttle Discovery's robotic arm. Seen here are Mission Specialists Christer Fuglesang and John "Danny" Olivas. 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 crew members check out storage containers they will use on the mission. The astronauts are, from left, Mission Specialists Christer Fuglesang, John "Danny" Olivas and Nicole Stott. 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

CAPE CANAVERAL, Fla. – 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 crew members check out storage containers they will use on the mission. From left are Mission Specialists John "Danny" Olivas, Christer Fuglesang, Patrick Forrester and Jose Hernandez, and Commander Rick Sturckow (pointing). 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 Mission Specialists Nicole Stott and John "Danny" Olivas practice with a camera they will use on their upcoming STS-128 mission. 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 mission Pilot Kevin Ford checks out the cockpit window of space shuttle Discovery. 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

CAPE CANAVERAL, Fla. – Wearing harnesses, STS-128 crew members check out space shuttle Discovery in Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida. From left are Mission Specialists Patrick Forrester and John "Danny" Olivas, Commander Rick Sturckow, Mission Specialist Nicole Stott, Pilot Kevin Ford and Mission Specialist Christer Fuglesang. 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

CAPE CANAVERAL, Fla. – TIn Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 crew members are lowered into space shuttle Discovery's payload bay to check equipment. At center is Mission Specialist John "Danny" Olivas. 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 Pilot Kevin Ford checks out the cockpit windows of space shuttle Discovery. 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

CAPE CANAVERAL, Fla. – STS-128 crew members put on harnesses before checking out space shuttle Discovery in Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida. From left are Pilot Kevin Ford, Commander Rick Sturckow, and Mission Specialists John "Danny" Olivas, Patrick Forester, Jose Hernandez, Nicole Stott and Christer Fugelsang. 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 crew members listen to a tile expert while checking out space shuttle Discovery. The astronauts are, from left, Mission Specialists Jose Fernandez, Patrick Forrester and Christer Fuglesang, Pilot Kevin Ford and Mission Specialist John "Danny" Olivas. 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 crew members listen to a tile expert while checking out space shuttle Discovery. The astronauts are, from left, Commander Rick Sturckow, Mission Specialist Patrick Forrester, Pilot Kevin Ford, and Mission Specialists Christer Fuglesang, John "Danny" Olivas and Nicole Stott. 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 crew members are lowered into space shuttle Discovery's payload bay to check equipment. At left is Mission Specialist Jose Hernandez; at center is Commander Rick Sturckow. 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 crew members are lowered into space shuttle Discovery's payload bay to get a close look at equipment. 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 crew members listen to a tile specialist while checking out space shuttle Discovery. The astronauts are, from left, Mission Specialists Patrick Forrester and Jose Hernandez, Commander Rick Sturckow, and Mission Specialist Christer Fuglesang, Nicole Stott and John "Danny" Olivas. 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 crew members check out the space shuttle Discovery's robotic arm. Reaching toward the arm is Mission Specialist Christer Fuglesang. 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

CAPE CANAVERAL, Fla. – In Orbiter Processing Facility 3 at NASA's Kennedy Space Center in Florida, STS-128 crew members are lowered into space shuttle Discovery's payload bay to check equipment. At left is Mission Specialist John "Danny" Olivas and at right is Mission Specialist Christer Fuglesang. 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

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, United Space Alliance shuttle technicians remove the hard cover from a window on Space Shuttle Discovery to enable STS-121 crew members to inspect the window from the cockpit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Commander Steve Lindsey works with equipment that will be on the mission. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Pilot Mark Kelly and Mission Specialist Stephanie Wilson are joined by two shuttle technicians as they examine the orbiter boom sensor system in Discovery's payload bay. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, members of the STS-121 crew practice working with equipment for the mission. From the left are Tomas Gonzalez-Torres, with NASA's Johnson Space Center; then Mission Specialists Stephanie Wilson, Piers Sellers and Michael Fossum. Pilot Mark Kelly has his back to the camera. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Commander Steve Lindsey inspects one of the windows that will fly on Space Shuttle Discovery during the mission. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Pilot Mark Kelly and Mission Specialist Stephanie Wilson are joined by two shuttle technicians as they work with equipment that will be on the mission. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Commander Steve Lindsey and Mission Specialist Piers Sellers, under the watchful eyes of Victor Badillo, practice working with equipment for the mission. Badillo, with United Space Alliance, is a flight maintenance trainer from Johnson Space Center. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Pilot Mark Kelly works with equipment that will be on the mission. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Pilot Mark Kelly and Mission Specialist Stephanie Wilson work with equipment that will be on the mission. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Pilot Mark Kelly and Mission Specialist Stephanie Wilson are joined by two shuttle technicians in Discovery's payload bay as they examine equipment that will be on the mission. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Pilot Mark Kelly inspects one of the windows that will fly on Space Shuttle Discovery during the mission. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Mission Specialist Lisa Nowak prepares for her upcoming mission inside Space Shuttle Discovery. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Mission Specialist Piers Sellers practices using a piece of equipment that will be on the mission. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Commander Steve Lindsey works with equipment that will be on the mission. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Commander Steve Lindsey prepares for his upcoming mission inside Space Shuttle Discovery. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, members of the STS-121 crew practice working with equipment for the mission. Starting from left are Tomas Gonzalez-Torres, with NASA's Johnson Space Center; Mission Specialist Stephanie Wilson, Pilot Mark Kelly, and Mission Specialists Piers Sellers and Michael Fossum. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.

KENNEDY SPACE CENTER, FLA. - In NASA Kennedy Space Center's Orbiter Processing Facility bay 3, STS-121 Pilot Mark Kelly and Mission Specialist Stephanie Wilson are joined by two shuttle technicians as they work with equipment that will be on the mission. The crew is at Kennedy to take part in the crew equipment interface test, which provides hands-on experience with equipment to be used on-orbit. Launch of Space Shuttle Discovery on mission STS-121, the second return-to-flight mission, is scheduled no earlier than May.