CAPE CANAVERAL, Fla. – The Pegasus barge is docked in the turn basin in the Launch Complex 39 Area at NASA's Kennedy Space Center in Florida. Inside is the external fuel tank, ET- 132, designated for space shuttle Discovery on the STS-128 mission. The tank will be offloaded and transported to a high bay in the Vehicle Assembly Building for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Troy Cryder

CAPE CANAVERAL, Fla. – Tugboats maneuver the Pegasus barge toward the dock in the turn basin in the Launch Complex 39 Area at NASA's Kennedy Space Center in Florida. The barge holds the external fuel tank, ET- 132, designated for space shuttle Discovery on the STS-128 mission. The tank will be offloaded and transported to a high bay in the Vehicle Assembly Building for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Troy Cryder

CAPE CANAVERAL, Fla. – The Pegasus barge, towed by a tugboat, enters the turn basin in the Launch Complex 39 Area at NASA's Kennedy Space Center in Florida. The barge holds the external fuel tank, ET- 132, designated for space shuttle Discovery on the STS-128 mission. The tank will be offloaded and transported to a high bay in the Vehicle Assembly Building for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Troy Cryder

CAPE CANAVERAL, Fla. – Viewed from across the turn basin in the Launch Complex 39 Area at NASA's Kennedy Space Center in Florida, the Pegasus barge is maneuvered up to the dock. In the background at left is the Vehicle Assembly Building. The barge holds the external fuel tank, ET- 132, designated for space shuttle Discovery on the STS-128 mission. The tank will be offloaded and transported to a high bay in the VAB for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Troy Cryder

CAPE CANAVERAL, Fla. – The Pegasus barge is docked in the turn basin in the Launch Complex 39 Area at NASA's Kennedy Space Center in Florida. Inside is the external fuel tank, ET- 132, designated for space shuttle Discovery on the STS-128 mission. The tank will be offloaded and transported to a high bay in the Vehicle Assembly Building for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Troy Cryder

CAPE CANAVERAL, Fla. – Viewed from across the turn basin in the Launch Complex 39 Area at NASA's Kennedy Space Center in Florida, the Pegasus barge is maneuvered up to the dock. In the background at left is the Vehicle Assembly Building. The barge holds the external fuel tank, ET- 132, designated for space shuttle Discovery on the STS-128 mission. The tank will be offloaded and transported to a high bay in the VAB for checkout. On the STS-128 mission, Discovery will carry science and storage racks to the International Space Station. Launch of Discovery is targeted for Aug. 6. Photo credit: NASA/Troy Cryder