A crane has lowered Super Stack 2 part of the Ares I-X upper stage onto Super Stack 1 for assembly.

In the Vehicle Assembly Building's High Bay 3 at NASA's Kennedy Space Center in Florida, a crane has lowered Super Stack 2, part of the Ares I-X upper stage, onto Super Stack 1 for assembly. The upper stage comprises five super stacks, which are integrated with the four-segment solid rocket booster first stage on the mobile launch platform. 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 for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Tim Jacobs