At Launch Pad 39A the U.S. Laboratory Destiny waits in Atlantis's payload bay for closure of the payload bay doors.

At Launch Pad 39A, the U.S. Laboratory Destiny waits in Atlantis’s payload bay for closure of the payload bay doors. Destiny, a key element in the construction of the International Space Station, is 28 feet long and weighs 16 tons. This research and command-and-control center is the most sophisticated and versatile space laboratory ever built. It will ultimately house a total of 23 experiment racks for crew support and scientific research. Destiny will be launched Feb. 7 on STS-98, the seventh construction flight to the ISS