In the Vehicle Assembly Building at NASA's Kennedy Space Center are moved across the bay.

In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, segments of the Ares I-X first stage are moved across the bay. They will be stacked and mated to the fifth segment simulator, completing Super Stack 1. The super stack comprises the forward skirt, forward skirt extension, interstages 1 and 2 and the fifth segment simulator. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted no earlier than Aug. 30 from Launch Pad 39B. Photo credit: NASA/Jack Pfaller