SPACE SHUTTLE DISCOVERY LAUNCH SIGNALS RETURN TO HUMAN SPACE FLIGHT

In the Operations and Checkout Building at NASA Kennedy Space Center, STS-114 Mission Commander Eileen Collins dons the helmet of her launch and entry suit before heading to the launch pad on July 26, 2005. Collins is making her fourth space flight on the historic Return to Flight mission STS-114 to the International Space Station. (UPI Photo/NASA/KSC)