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 ...

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 ...

The Challenger disaster, which occurred on January 28, 1986, remains one of the most heartbreaking events in space ...

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

Beloved Concord teacher Christa McAuliffe, the first civilian teacher ever chosen for a space mission, was one of seven crew members killed in the disaster.

For millions, 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.

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 ...