In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, external fuel tank 130 is in place in high bay 2 where it will undergo checkout before stacking with the solid rocket boosters and space shuttle Atlantis for the STS-125 mission. The fuel tank was previously designated for the STS-127 mission. The STS-125 Hubble servicing mission is targeted to launch May 12. Photo credit: NASA/Tim Jacobs