KSC-2009-1395

CAPE CANAVERAL, Fla. – At center, ballast is lowered into segment 7 of the Ares I-X rocket in Vehicle Assembly Building high bay 4. Other segments are stacked around the bay. These ballast assemblies are being installed in the upper stage segments 1 and 7 and will mimic the mass of the fuel. Their total weight is approximately 160,000 pounds.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. Ares I is the essential core of a safe, reliable, cost-effective space transportation system that eventually will carry crewed missions back to the moon, on to Mars and out into the solar system. The Ares I-X is targeted for launch in July 2009. Photo credit: NASA/Jack Pfaller