NASA's space shuttle Challenger accident was a devastating tragedy that killed seven astronauts and shocked the world on Jan. 28, 1986. Killed in the accident were Challenger commander Dick Scobee ...

SPACE.com takes a look back at NASA's Challenger shuttle disaster 25 years later. See photos and in-depth stories on the Jan. 28, 2986 Challenger accident.

On a tense, emotional Sept. 29, 1988, commander Frederick "Rick" Hauck led the crew that took a revamped shuttle, Discovery, into space for the first time since the Challenger.

Melroy says the Columbia disaster had a substantial impact on NASA, as did two other major disasters: the Apollo 1, which caught fire during a pre-launch test in 1967, and the Challenger, which ...

From the archives: Watch CBS News coverage of the Space Shuttle Columbia disaster on Feb. 1, 2003, in the video above. Twenty years ago this Wednesday — on Feb. 1, 2003, at 8:48:39 a.m. EST ...

Space shuttle Columbia lifts off from NASA's Kennedy Space Center on January 16, 2003, in Florida. Columbia broke up upon reentry to Earth and the seven-person crew was lost February 1, 2003.

You know, the space shuttle has had successful entries 111 times. When we first launched the "Columbia" back in 1981, there were people had their hearts in their throats until we saw "Columbia ...

Columbia, Another Shuttle, Disintegrates in 2003 Seventeen years after the Challenger explosion, Columbia was re-entering Earth’s atmosphere on Feb. 1, 2003, when it broke up, killing its seven ...

In “Challenger: A True Story of Heroism and Disaster on the Edge of Space,” Adam Higginbotham provides the most definitive account of the explosion that took the lives of the seven-person crew ...

A stunning discovery has been made 36 years after the Challenger space shuttle disaster. NASA officials tell ABC13 that a 20-foot segment of the shuttle was discovered and recovered by divers off ...

They flew for 25 more years after Challenger, yes, but before they were through they claimed a second crew, when the shuttle Columbia disintegrated on reentry in 2003.

HOUSTON, TX - FEBRUARY 4: U.S. President George W. Bush speaks during a memorial service for the astronauts who died in the Columbia Space Shuttle disaster at the Johnson Space Center February 4 ...