it is with deep, heartfelt sorrow. I address you here this afternoon at 11:40 a.m. This morning Space program experienced a national tragedy with the explosion of the space shuttle Challenger.

WASHINGTON — It's been 39 years since the Challenger space shuttle explosion, one of NASA's most devastating tragedies. NASA's Challenger shuttle exploded 73 seconds after lifting off on Jan. 28, 1986 ...

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, ...

The Challenger disaster, a tragic day in space exploration history, took place on January 28, 1986. Just 73 seconds after ...

WHITEHALL, Mich. — The Space Shuttle Challenger explosion was one of those moments in history that you will always remember where you were when they happened. Terry Fett, who now lives in Whitehall, ...