CAPE CANAVERAL, Fla. – In the extended duration orbiter lab, or EDO, of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, workers watch closely as a crane lifts the fifth segment simulator center from the transporter. The segment will be moved to supports on the floor. Another segment is at right. 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. Ares I-X is targeted for launch in July 2009. Photo credit: NASA/Troy Cryder

CAPE CANAVERAL, Fla. – In the extended duration orbiter lab, or EDO, of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, workers remove the cover from the fifth segment simulator center. It will be prepared for stacking with other segments in the VAB. 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. Ares I-X is targeted for launch in July 2009. Photo credit: NASA/Troy Cryder

CAPE CANAVERAL, Fla. – In the extended duration orbiter lab, or EDO, of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, workers watch closely as a crane lifts the fifth segment simulator center from the transporter. The segment is being moved to supports on the floor. 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. Ares I-X is targeted for launch in July 2009. Photo credit: NASA/Troy Cryder

CAPE CANAVERAL, Fla. – In the extended duration orbiter lab, or EDO, of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, workers remove the final plastic cover from the fifth segment simulator center. It will be prepared for stacking with other segments in the VAB. 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. Ares I-X is targeted for launch in July 2009. Photo credit: NASA/Troy Cryder

CAPE CANAVERAL, Fla. – The covered fifth segment simulator center for the Ares I-X rocket leaves Astrotech in Titusville, Fla., heading for the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. It will join other segments being stacked there. 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. Ares I-X is targeted for launch in July 2009. Photo credit: NASA/Troy Cryder

CAPE CANAVERAL, Fla. – The covered fifth segment simulator center for the Ares I-X rocket arrives at the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. It will join other segments being stacked there. 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. Ares I-X is targeted for launch in July 2009. Photo credit: NASA/Troy Cryder

CAPE CANAVERAL, Fla. – In the extended duration orbiter lab, or EDO, of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, workers help guide the fifth segment simulator center onto supports on the floor. 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. Ares I-X is targeted for launch in July 2009. Photo credit: NASA/Troy Cryder

CAPE CANAVERAL, Fla. – The covered fifth segment simulator center for the Ares I-X rocket arrives in the transfer aisle of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida. It will join other segments being stacked there. 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. Ares I-X is targeted for launch in July 2009. Photo credit: NASA/Troy Cryder