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CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's transfer aisle, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," moves Super Stack 5 from High Bay 4 over the transfer aisle toward an opening at the 16th floor crossover in High Bay 3. The stack will be positioned on top of the segments already in place on the mobile launcher platform in High Bay 3, in the background, completing assembly of the 327-foot-tall rocket. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. 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/Dimitri Gerondidakis