Forty years after the Challenger disaster, NPR explores the engineers' last-minute efforts to stop the launch, their decades ...

Add Yahoo as a preferred source to see more of our stories on Google. Forty years ago today, disaster struck NASA’s human spaceflight program when the space shuttle Challenger exploded 73 seconds ...

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 ...

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 ...

CAPE CANAVERAL, Fla. — Wednesday marks 40 years since the NASA space shuttle Challenger broke apart after lifting off, killing all seven people on board off the coast of Cape Canaveral, Florida.

A new report commissioned by NASA says the crewed test flight of Boeing’s Starliner spacecraft could have ended with a disaster comparable with the Space Shuttle Challenger explosion.

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 ...