In 1986, the world watched in horror as the space shuttle Challenger exploded, and John Denver's personal connection to NASA ...

The two solid rocket boosters flew in different directions as the external fuel tank became a fireball.(AP: Bruce Weaver / File) Forty years ago, the Challenger space shuttle disintegrated just after ...

In 1986, seven astronauts boarded Space Shuttle Challenger for what was meant to be a routine tenth flight of the orbiter.

For millions of Americans, it was an event that would be seared into their memories for the rest of their lives – on par with the Kennedy assassination and 9/11. On that chilly January day in 1986, ...

It was 40 years ago today (Jan. 28) that the space shuttle Challenger blasted off on its 10th mission to space. Sadly, the vehicle never made it there. Challenger exploded 73 seconds after liftoff ...

This browser does not support the Video element. Seven astronauts were killed in the 1986 space shuttle Challenger disaster. Because a teacher was aboard, millions of schoolchildren watched the event ...

William Lucas, a key NASA figure during the 1986 Space Shuttle Challenger disaster, has passed away in Alabama at the age of ...

Their eyes were watching. Some knew something was wrong. Others were slow to realize. Soon everyone came to grief. Forty years ago Space Shuttle Challenger climbed into the clear amid blue skies over ...

How Long After Launch Did the Challenger Explode? It’s hard to believe that it’s been 40 years to the day since the Space Shuttle Challenger exploded just 73 seconds after liftoff, in front of the ...

Corrections & Clarifications: An earlier version of this story misstated the date of the Space Shuttle Columbia disaster. It occurred Feb. 1, 2003. For millions of Americans, it was an event that ...