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.

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 disaster. It was a day the nation slowly realized something had ...

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

NASA held its annual Day of Remembrance on Thursday to honor those who lost their lives in the pursuit of space exploration.

The event will honor astronaut Christa McAuliffe, the first teacher selected to fly to space ...

The 40th anniversary of the Challenger disaster cast a shadow over NASA's annual Day of Remembrance event inside the Space ...

From the world watching in horror as the Challenger space shuttle exploded to the Chernobyl nuclear disaster that upended millions of lives, 1986 was a year for the history books. But it wasn’t all ...

John Denver was a decorated country musician, philanthropist, environmentalist, and, generally, an icon. The man wore a few different hats. And one more to include on that list is that of a pilot’s ...