This image shows in detail a view of the hydraulic system connected to the underside of shuttle Atlantis to the Vehicle Assembly Building.

In Orbiter Processing Facility-1 at NASA's Kennedy Space Center in Florida, this image shows in detail a view of the hydraulic system connected to the underside of shuttle Atlantis that will lift the vehicle off the floor to enable the orbiter transport system, or OTS, to be rolled underneath for its move, or "rollover," to the Vehicle Assembly Building. Once there Atlantis will be joined with the external fuel tank and solid rocket boosters on the mobile launcher platform. Atlantis is being prepared for the STS-135 mission, which will deliver the Raffaello multipurpose logistics module packed with supplies, logistics and spare parts to the International Space Station. STS-135 is targeted to launch June 28, and will be the last spaceflight for the Space Shuttle Program. Photo credit: NASA/Jim Grossmann