It’s been 40 years since the tragic Space Shuttle Challenger launch.

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

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 ...

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

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

Ohio native Judith Resnik was a mission specialist on the doomed Space Shuttle Challenger when it exploded shortly after ...

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

Twenty-five names are carved into the black mirror-finished granite: the Challenger seven, the seven who perished in the ...

NASA observed its annual Day of Remembrance Thursday to commemorate the astronauts killed in the Apollo 1 and space shuttle ...

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

Here’s a look at space accidents that have affected astronauts or other staff related to spaceflight. Accidents that involved unmanned spacecraft are not included. Timeline October 24, 1960 – The ...