Forty years ago today, Americans were stunned, shocked and saddened when the Challenger space shuttle exploded 73 seconds after liftoff on a cold, cloudless day in Florida. A booster leak ignited the ...

NASA's Artemis II mission, which will test life support systems and other mechanics during a flyby of the moon, has brought the Challenger disaster to the minds of U.S. space fans once again.

Forty years ago, the world watched in horror as NASA's space shuttle Challenger exploded mid-air, killing all seven crew members aboard. The disaster occurred at what was then the pinnacle of the U.S.

On Jan. 28, 1986 — 40 years ago Wednesday — America watched in horror as the nation’s first civilian space traveler and six NASA astronauts died in the explosion of the shuttle Challenger. Challenger ...

Seven astronauts were killed in the 1986 space shuttle Challenger disaster. Because a teacher was aboard, millions of schoolchildren watched the event live in school. Forty years later, many of those ...