CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, space shuttle Endeavour's payload bay doors are closing. Seen here on the left is the Integrated Cargo Carrier-Vertical Light Deploy (with the Space-to-Ground Antenna showing). The STS-127 mission is the final of three flights dedicated to the assembly of the Japanese Kibo laboratory complex on the International Space Station. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, workers in the payload changeout room of the rotating service structure prepare to close space shuttle Endeavour's payload bay doors in preparation for the launch of the STS-127 mission. The STS-127 mission is the final of three flights dedicated to the assembly of the Japanese Kibo laboratory complex on the International Space Station. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, workers ensure smooth closure of space shuttle Endeavour's payload bay doors. Elements stored in the payload bay are, at bottom, the Integrated Cargo Carrier-Vertical Light Deploy (with the Space-to-Ground Antenna showing), the Experiment Logistics Module-Exposed Section (middle) and the Japanese Experiment Module's Exposed Facility (at top). The STS-127 mission is the final of three flights dedicated to the assembly of the Japanese Kibo laboratory complex on the International Space Station. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, workers in the payload changeout room of the rotating service structure check equipment during closing of space shuttle Endeavour's payload bay doors. The STS-127 mission is the final of three flights dedicated to the assembly of the Japanese Kibo laboratory complex on the International Space Station. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, space shuttle Endeavour's payload bay doors have been closed. Inside are the Integrated Cargo Carrier-Vertical Light Deploy, the Experiment Logistics Module-Exposed Section and the Japanese Experiment Module's Exposed Facility. The STS-127 mission is the final of three flights dedicated to the assembly of the Japanese Kibo laboratory complex on the International Space Station. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, workers keep watch as space shuttle Endeavour's payload bay doors close. Inside are the Integrated Cargo Carrier-Vertical Light Deploy, the Experiment Logistics Module-Exposed Section and the Japanese Experiment Module's Exposed Facility.The STS-127 mission is the final of three flights dedicated to the assembly of the Japanese Kibo laboratory complex on the International Space Station. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, space shuttle Endeavour's payload bay doors are closing. At the bottom of the payload bay is the Integrated Cargo Carrier-Vertical Light Deploy (with the Space-to-Ground Antenna showing). In the middle is the Experiment Logistics Module-Exposed Section. At top is the Japanese Experiment Module's Exposed Facility. The STS-127 mission is the final of three flights dedicated to the assembly of the Japanese Kibo laboratory complex on the International Space Station. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, a worker keeps watch as the starboard payload bay door closes over space shuttle Endeavour's payload. Inside are the Integrated Cargo Carrier-Vertical Light Deploy, the Experiment Logistics Module-Exposed Section and the Japanese Experiment Module's Exposed Facility. The STS-127 mission is the final of three flights dedicated to the assembly of the Japanese Kibo laboratory complex on the International Space Station. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, workers in the payload changeout room of the rotating service structure watch closely as space shuttle Endeavour's payload bay doors close in preparation for the launch of theSTS-127 mission. The STS-127 mission is the final of three flights dedicated to the assembly of the Japanese Kibo laboratory complex on the International Space Station. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – On Launch Pad 39A at NASA's Kennedy Space Center in Florida, a worker keeps watch as the portside payload bay door closes over space shuttle Endeavour's payload. Inside are the Integrated Cargo Carrier-Vertical Light Deploy, the Experiment Logistics Module-Exposed Section and the Japanese Experiment Module's Exposed Facility. The STS-127 mission is the final of three flights dedicated to the assembly of the Japanese Kibo laboratory complex on the International Space Station. Photo credit: NASA/Jack Pfaller