In NASA Kennedy Space Center's Vehicle Assembly Building High Bay 4 a crane lowers for integration.

In NASA Kennedy Space Center's Vehicle Assembly Building High Bay 4, a crane lowers the Ares I-X Super Stack 3 onto Super Stack 2 for integration. 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/Jack Pfaller