Forty years ago, the space shuttle Challenger exploded 73 seconds after liftoff. Seven astronauts were killed, including ...

The Space Shuttle Challenger was destroyed just 73 seconds into its flight 40 years ago today, killing all seven crew on ...

NASA's space shuttle Challenger exploded and broke apart Jan. 28, 1986, in the sky over East-Central Florida, killing the ...

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 ...

It's been 40 years since the space shuttle Challenger exploded shortly after liftoff Jan. 28, 1986, in Florida, killing all ...

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

We're asking readers to share their memories on one of those "Where were you when ... " type of moments in American history.

The loss of the Space Shuttle Challenger and its seven brave astronauts 40 years ago inflicted a generational wound on the ...

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

As we enter a new age of space travel, a former NASA astronaut says that rather than accepting risk, we should try to control ...

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

Forty years after the Challenger disaster, its legacy fuels STEM education, inspiring new generations. The milestone calls ...