The rotating service structure at Launch Pad 39B is retracted the day before liftoff.
The Atlantis astronauts return to Florida ready for their mission.
The six-member crew of Space Shuttle Atlantis arrives at Kennedy Space Center for final launch preparations.
The STS-115 crew spends four days rehearsing and preparing for their upcoming launch aboard Space Shuttle Atlantis.
The STS-121 Crew at the "X Games"
Atlantis reaches Launch Pad 39B.
The orbiter Atlantis rolls to the Vehicle Assembly Building.
The next addition to the space station is ready for launch.