Endeavour roared into orbit carrying teacher-astronaut Barbara Morgan, who was finally fulfilling the dream of Christa McAuliffe and the rest of the fallen Challenger crew. Endeavour and its crew rose from the seaside launch pad at 6:36 p.m., Aug. 8, 2007, and pierced a solidly blue sky.
Astronauts Alvin Drew Jr., left, Barbara Morgan and David Williams head to the launch pad, Aug. 8, 2007, for their flight aboard the space shuttle Endeavour which is on a mission to the international space station. Morgan was Christa McAuliffe's backup for Challenger's doomed launch in 1986 and, even after two shuttle disasters, never swayed in her dedication to NASA and the agency's on-and-off quest to send a schoolteacher into space. She rocketed away in the center seat of the cabin's lower compartment, the same seat that had been occupied by McAuliffe.Scott Audette/Reuters