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Forty years ago, the NASA space shuttle Challenger exploded 73 seconds after liftoff, killing all 7 crew members. Among the seven crew members were 5 NASA astronauts, as well as a payload specialist ...

Forty years ago today, Jan, 28, 1986, classrooms and households alike watched a live broadcast of what they thought was going to be a happy historic day. However, 73 seconds after launch, a rocket on ...

Forty years to the day since the Space Shuttle Challenger disaster, a former astronaut and teacher recounted watching the launch as a child and reflected on why she still chose to fly years later in a ...

Add Yahoo as a preferred source to see more of our stories on Google. The Space Shuttle Challenger explodes shortly after lifting off from Kennedy Space Center, in Florida, on Jan. 28, 1986. All seven ...

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 ...

It's now been 40 years since New Hampshire school teacher Christa McAuliffe died when the space shuttle Challenger exploded. All seven on board were killed when Challenger broke apart following ...

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 ...

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 Challenger disaster's enduring legacy is the educational mission that arose from the tragedy. Challenger Learning Centers were created to honor the crew by inspiring young people in science and ...

The space shuttle Challenger exploded 73 seconds after liftoff on January 28, 1986, killing all seven crew members. An investigation determined the explosion was caused by an O-ring seal failure in a ...