Dream Chaser is finally ready for launch after more than a decade of development. Sierra Space has moved the Tenacity cargo space plane and its Shooting Star module into final testing at NASA’s Neil ...

The space shuttle Challenger explosion was a defining moment of the 1980s. Whether you were watching on TV or in person, ...

Challenger exploded 73 seconds after liftoff while carrying seven people, including "Teacher in Space" participant Christa McAuliffe. Nobody survived the launch on Jan. 28, 1986 from NASA's Kennedy ...

NASA's space shuttle Challenger completed 10 missions before it broke apart during a launch in 1986, killing seven astronauts ...

The crew for the space shuttle Challenger flight 51-L leaves their quarters for the launch pad, Jan. 27, 1986, at the Kennedy ...

When a spacecraft comes home without people on board, it is not a cinematic failure but a carefully choreographed engineering ...

Forty years after the space shuttle Challenger disintegrated shortly after liftoff, the disaster remains one of the most consequential tragedies in U.S. spaceflight history.

We're revisiting live broadcasts from Cape Canaveral, with one of the local reporters who covered the launch in real time. Almost 40 years ago, the Challenger space shuttle broke apart, claiming the ...

Seven astronauts aboard the Space Shuttle Challenger died 40 years ago today in a disaster watched by millions ...

It's been 40 years since the Challenger space shuttle, carrying seven people, took off from Florida's Kennedy Space Center, ...