It's been 40 years since the space shuttle Challenger exploded shortly after liftoff Jan. 28, 1986, in Florida, killing all ...

Forty years ago, the space shuttle Challenger exploded 73 seconds after liftoff. Seven astronauts were killed, including ...

It’s been 40 years since the Space Shuttle Challenger disaster. It was a day the nation slowly realized something had ...

Forty years after the Challenger disaster, NPR explores the engineers' last-minute efforts to stop the launch, their decades of guilt and the vital lessons that remain critical for NASA today.

Ohio native Judith Resnik was a mission specialist on the doomed Space Shuttle Challenger when it exploded shortly after ...