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Space Shuttle Challenger disaster - Wikipedia
On January 28, 1986, Space Shuttle Challenger broke apart 73 seconds into its flight, killing all seven crew members aboard. The spacecraft disintegrated 46,000 feet (14 km) above the Atlantic Ocean, off the coast of Cape Canaveral, Florida, at 16:39:13 UTC (11:39:13 a.m. EST, local time at the launch site).

Challenger disaster | Summary, Date, Cause, & Facts - Britannica
Challenger disaster, explosion of the U.S. space shuttle orbiter Challenger, shortly after its launch from Cape Canaveral, Florida, on January 28, 1986, which claimed the lives of seven astronauts, including Christa McAuliffe, who had won a national screening to become the first teacher in space.

Challenger STS-51L Accident - NASA
On January 28, 1986, NASA and the American people were rocked as tragedy unfolded 73 seconds into the flight of Space Shuttle Challenger’s STS-51L mission. Presented below are documents and resources about the accident and its aftermath.

The loss of Challenger and crew in 1986: History & Major Facts
At 11:38 a.m. EST, Challenger lifted off from Launch Complex 39B. Just 73 seconds after launch, the shuttle disintegrated, leading to the deaths of all seven crew members. The cause of the disaster was traced to the failure of an O-ring seal in its right solid rocket booster (SRB).

Challenger Explosion - Date, Astronauts & Shuttle - HISTORY
On February 1, 2003, a second shuttle disaster rocked the United States when the space shuttle Columbia disintegrated upon reentry, killing all seven people aboard.

The Challenger Tragedy - Spaceline
Space Shuttle Challenger began Mission STS-51L with a launch from Kennedy Space Center Launch Pad 39B at 11:38:00 a.m. EST on January 28, 1986. Challenger exploded 73 seconds after launch, and a crew of seven astronauts perished.

Challenger disaster: Remembering the tragic space shuttle ...
Just 73 seconds after launch, the Space Shuttle Challenger exploded, leading to the loss of seven astronauts, including Christa McAuliffe, the first teacher in space.

Space shuttle Challenger and the disaster that changed NASA ...
The space shuttle Challenger — during its 10th launch – on Jan. 28, 1986, exploded 73 seconds after liftoff, killing all seven crewmembers and changing NASA's space program forever.

The Space Shuttle Challenger Disaster
All that ended on the bitter cold morning of January 28th 1986, when seven astronauts lost their lives in front of family, friends, and millions of TV viewers.

Lessons from Challenger - Aerospace America
The Challenger and Columbia disasters reshaped NASA’s processes and attitudes toward risk. Forty years after Challenger, David Ariosto examined its impact on regulations and the regulatory path forward for today’s commercial operators. Forty years ago in January, the space shuttle Challenger broke apart 73 seconds after launch, shattering a growing impression that NASA’s shuttle program ...