The anniversary of the Challenger disaster marks a cold reminder of risk and management failure along with the role weather played in the deadly flight.

TV viewers witnessed a tragedy in the skies above Florida. America lost is favorite astronaut-teacher Christa McAuliffe.

NASA recently paid tribute to the Challenger crew and other fallen astronauts during its annual Day of Remembrance.

On Tuesday, the nation marks the 39th anniversary of the explosion that destroyed Challenger 73 seconds after liftoff after a failure in the shuttle’s right solid rocket booster. Americans were ...

Today marks 39 years since the tragic Space Shuttle Challenger disaster, honoring the brave pioneers who lost their lives in space.

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. Approximately a minute, half after ...

Russian claims that a British Challenger 2 tank ... strike and before another. An explosion can clearly be seen at the end of the second video, but no aftermath footage has been released to ...

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 ...