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

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 Challenger space shuttle, carrying seven people, took off from Florida's Kennedy Space Center, ...

Their eyes were watching. Some knew something was wrong. Others were slow to realize. Soon everyone came to grief. Forty ...

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

The space shuttle Challenger crew. Front row, from left to right, Michael J. Smith, Francis R. "Dick" Scobee, and Ronald E.

The crews of Space Shuttle Challenger, Columbia and Apollo 1 were honored at Kennedy Space Center during NASA’s Day of ...

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

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

NASA's Space Shuttle Program, which ran from 1981 to 2011, was a complex and ambitious project that pushed the boundaries of ...

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