Managers had delayed the lift-off due ... temperatures on the pad making the O-rings brittle and more susceptible to erosion. A year later, the Space Shuttle Challenger would launch under similar ...

Tuesday marks the 34th anniversary of the Challenger space shuttle explosion ... doomed the shuttle before it even left the launch pad. Just a few seconds into the mission, a flame was seen ...

Working as a freelance photographer for The Associated Press, Weaver was among hundreds of witnesses on the ground at the Kennedy Space Center who watched Challenger lift off from the launch pad ...