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 ...

Add Yahoo as a preferred source to see more of our stories on Google. Forty years ago, the world watched in horror as NASA's space shuttle Challenger exploded mid-air, killing all seven crew members ...

Add Yahoo as a preferred source to see more of our stories on Google. Today marks the 40th anniversary of the Challenger explosion, a devastating incident that occurred on Jan. 28, 1986, after the ...

NASA developed space shuttles to make more routine trips back and forth between the earth’s surface and Low Earth Orbit. NASA built six space shuttles, the first one launching in 1981 and the last one ...

A ceremony in Titusville, Florida, honored the 17 astronauts lost in NASA's Apollo 1, Challenger and Columbia tragedies. The Challenger shuttle exploded 73 seconds after its January 1986 launch, ...

A flag that survived the Challenger space shuttle explosion in 1986 will be permanently displayed at the Challenger Learning Center in Colorado Springs, offering visitors a tangible connection to one ...

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 ...

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 ...