In 1986, seven astronauts boarded Space Shuttle Challenger for what was meant to be a routine tenth flight of the orbiter.

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 ...

NASA's Space Shuttle program was a great idea in concept, but flawed execution led to its demise. Here are the problems it was supposed to solve but never did.

Sally Ride speaks to members of the media as NASA personnel set up astronomy equipment on the South Lawn of the White House in preparation for an event with the president and the first lady in ...