The STS-105 and Expedition Three crews exit the Operations and Checkout Building on their way to Launch Pad 39A and a countdown.

The STS-105 and Expedition Three crews exit the Operations and Checkout Building on their way to Launch Pad 39A and a simulated launch countdown. From front to back, the crew members are Pilot Rick Sturckow (left) and Commander Scott Horowitz (right); Mission Specialists Patrick Forrester (left) and Dan Barry (right); cosmonaut Vladimir Nikolaevich Dezhurov (left), Commander Frank Culbertson (center) and cosmonaut Mikhail Tyurin (right). Both crews are at Kennedy Space Center participating in a Terminal Countdown Demonstration Test, a dress rehearsal for launch. The activities also include emergency egress training and familiarization with the payload. Mission STS-105 will be transporting the Expedition Three crew, several payloads and scientific experiments to the International Space Station aboard Space Shuttle Discovery. The Expedition Two crew members currently on the Station will return to Earth on Discovery. The mission is scheduled to launch no earlier than Aug. 9, 2001