KENNEDY SPACE CENTER, FLA. -- In high bay 1 of the Vehicle Assembly Building at NASA's Kennedy Space Center, the suspended external tank is lowered between the solid rocket boosters, or SRBs, installed on the mobile launcher platform. The tank will be mated with the boosters for launch. Work to remove and replace the feed-through connector on the external tank will be done in parallel with integrated ET/SRB testing in preparation for space shuttle Endeavour to join the stack later in January. The STS-123 mission is targeted for launch on Endeavour in mid-March. The 25th assembly flight to the International Space Station, Endeavour's payload includes the Japanese Experiment Logistics Module Pressurized Section. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center, the suspended external tank is lowered into high bay 1 toward the mobile launcher platform. The tank will be mated with the solid rocket boosters, or SRBs, already installed on the platform. Work to remove and replace the feed-through connector on the external tank will be done in parallel with integrated ET/SRB testing in preparation for space shuttle Endeavour to join the stack later in January. The STS-123 mission is targeted for launch on Endeavour in mid-March. The 25th assembly flight to the International Space Station, Endeavour's payload includes the Japanese Experiment Logistics Module Pressurized Section. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center, the suspended external tank is lowered into high bay 1 toward the mobile launcher platform. The tank will be mated with the solid rocket boosters, or SRBs, already installed on the platform. Work to remove and replace the feed-through connector on the external tank will be done in parallel with integrated ET/SRB testing in preparation for space shuttle Endeavour to join the stack later in January. The STS-123 mission is targeted for launch on Endeavour in mid-March. The 25th assembly flight to the International Space Station, Endeavour's payload includes the Japanese Experiment Logistics Module Pressurized Section. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In high bay 1 of the Vehicle Assembly Building at NASA's Kennedy Space Center, the suspended external tank is lowered between the solid rocket boosters, or SRBs, installed on the mobile launcher platform. The tank will be mated with the boosters for launch. Work to remove and replace the feed-through connector on the external tank will be done in parallel with integrated ET/SRB testing in preparation for space shuttle Endeavour to join the stack later in January. The STS-123 mission is targeted for launch on Endeavour in mid-March. The 25th assembly flight to the International Space Station, Endeavour's payload includes the Japanese Experiment Logistics Module Pressurized Section. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center, the suspended external tank is lowered into high bay 1 toward the mobile launcher platform. The tank will be mated with the solid rocket boosters, or SRBs, already installed on the platform. Work to remove and replace the feed-through connector on the external tank will be done in parallel with integrated ET/SRB testing in preparation for space shuttle Endeavour to join the stack later in January. The STS-123 mission is targeted for launch on Endeavour in mid-March. The 25th assembly flight to the International Space Station, Endeavour's payload includes the Japanese Experiment Logistics Module Pressurized Section. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center, a technician monitors the movement of the external tank as it is lifted out of the checkout cell. The tank will be lifted into high bay 1 for mating with the solid rocket boosters, or SRBs, already installed on the mobile launcher platform. Work to remove and replace the feed-through connector on the external tank will be done in parallel with integrated ET/SRB testing in preparation for space shuttle Endeavour to join the stack later in January. The STS-123 mission is targeted for launch on Endeavour in mid-March. The 25th assembly flight to the International Space Station, Endeavour's payload includes the Japanese Experiment Logistics Module Pressurized Section. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center, technicians check the fitting on the cable that will help lift the external tank out of the checkout cell. The tank will be lifted into high bay 1 for mating with the solid rocket boosters, or SRBs, already installed on the mobile launcher platform. Work to remove and replace the feed-through connector on the external tank will be done in parallel with integrated ET/SRB testing in preparation for space shuttle Endeavour to join the stack later in January. The STS-123 mission is targeted for launch on Endeavour in mid-March. The 25th assembly flight to the International Space Station, Endeavour's payload includes the Japanese Experiment Logistics Module Pressurized Section. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center, technicians look over the equipment that will lift the external tank out of the checkout cell. The tank will be lifted into high bay 1 for mating with the solid rocket boosters, or SRBs, already installed on the mobile launcher platform. Work to remove and replace the feed-through connector on the external tank will be done in parallel with integrated ET/SRB testing in preparation for space shuttle Endeavour to join the stack later in January. The STS-123 mission is targeted for launch on Endeavour in mid-March. The 25th assembly flight to the International Space Station, Endeavour's payload includes the Japanese Experiment Logistics Module Pressurized Section. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In high bay 1 of the Vehicle Assembly Building at NASA's Kennedy Space Center, the suspended external tank is lowered toward the mobile launcher platform. The tank will be mated with the solid rocket boosters, or SRBs, already installed on the platform. The boosters' nose cones can be seen in the foreground and behind the tank. Work to remove and replace the feed-through connector on the external tank will be done in parallel with integrated ET/SRB testing in preparation for space shuttle Endeavour to join the stack later in January. The STS-123 mission is targeted for launch on Endeavour in mid-March. The 25th assembly flight to the International Space Station, Endeavour's payload includes the Japanese Experiment Logistics Module Pressurized Section. Photo credit: NASA/Kim Shiflett

KENNEDY SPACE CENTER, FLA. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center, the suspended external tank is moved into high bay 1. The tank will be lowered toward the mobile launcher platform for mating with the solid rocket boosters, or SRBs, already installed on the platform. Work to remove and replace the feed-through connector on the external tank will be done in parallel with integrated ET/SRB testing in preparation for space shuttle Endeavour to join the stack later in January. The STS-123 mission is targeted for launch on Endeavour in mid-March. The 25th assembly flight to the International Space Station, Endeavour's payload includes the Japanese Experiment Logistics Module Pressurized Section. Photo credit: NASA/Kim Shiflett