Forty years later, the Challenger Learning Center is asking the public for their own memories of the 1986 space shuttle ...

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

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

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

"I lost my father," Alison Balch said, "but to everyone else, they felt like they lost somebody also." ...

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

It’s been 40 years since the Space Shuttle Challenger disaster. It was a day the nation slowly realized something had ...

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

For 73 seconds, a crowd of excited Americans looked to the sky in wonder and awe as they waved goodbye to the crew aboard ...

It was 40 years ago this week that many of us witnessed those fateful 73 seconds of Challenger's final flight. Let's remember those we lost that day.

Marshall Space Flight Center workers gathered to honor the astronauts who died in the Challenger explosion, as well as those ...