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 ...

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.

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 ...

Forty years ago, the Space Shuttle Challenger exploded on live television just 73 seconds after lifting off. All seven astronauts aboard died, plunging the nation into mourning. On our video podcast ...

Though the Challenger disaster brought an end to Teacher in Space, educators in the years since have found other paths to orbit. Barbara Morgan, an elementary school teacher who had trained as ...

Four of the astronauts selected for the Space Shuttle Challenger mission in 1986 sit in the shuttle mission simulator (SMS). From left to right: Michael J. Smith, Ellison S. Onizuka, Judith A. Resnik ...

Editor's note: This story contains discussion of astronaut fatalities and dangerous moments in human spaceflight. It was 40 years ago today (Jan. 28) that the space shuttle Challenger blasted off on ...

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 ...