Forty years ago, the NASA space shuttle Challenger exploded 73 seconds after liftoff, killing all seven crew members. Among the seven crew members were five NASA astronauts, as well as a payload ...

The two solid rocket boosters flew in different directions as the external fuel tank became a fireball.(AP: Bruce Weaver / File) Forty years ago, the Challenger space shuttle disintegrated just after ...

This browser does not support the Video element. Seven astronauts were killed in the 1986 space shuttle Challenger disaster. Because a teacher was aboard, millions of schoolchildren watched the event ...

Smoke billows in the sky above the Kennedy Space Center in Florida after the explosion of the Space Shuttle Challenger on Jan. 28, 1986. Just one day before the Challenger space shuttle exploded over ...

Five astronauts and two payload specialists make up the STS 51-L crew, scheduled to fly aboard the Space Shuttle Challenger in January of 1986. Crewmembers are (left to right, front row) astronauts ...

On Jan. 28, 1986, NASA’s 25th space shuttle mission, Challenger, left the launchpad in Cape Canaveral, Florida. Seventy-three seconds into... Lessons and failures from the Challenger space shuttle ...

HAMMOND, Ind. (WLS) -- The worlds of science and education come together at the Challenger Learning Center in Hammond, Indiana, which honors the legacy of the "Challenger seven," while inspiring ...