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www.space.com/31732-space-shuttle-challenger-disaster-explained-infographic.html

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 ...

en.wikipedia.org/wiki/Space_Shuttle_Challenger_disaster

In 2009, Allan J. McDonald, former director of the Space Shuttle Solid Motor Rocket Project for Morton-Thiokol, Inc. published his book Truth, Lies, and O-Rings: Inside the Space Shuttle Challenger Disaster. Up to that point, no one directly involved in the decision to launch Challenger had published a memoir about the experience.

www.space.com/10677-challenger-tragedy-overview.html

An overview of the space shuttle Challenger accident as we look back on the tragedy that occurred 25 years ago this week. Details of what happened, how, and the consequences for NASA at SPACE.com.

www.thinkreliability.com/case_studies/root-cause-analysis-challenger-explosion

Sadly, the Challenger made history in a different way that morning, entering the books as NASA’s first space shuttle disaster. A mere 73 seconds after liftoff, the space shuttle broke apart over the Atlantic, taking the lives of all seven crewmembers.

www.spacesafetymagazine.com/space-disasters/challenger-disaster

The Space Shuttle Challenger disaster is probably the most significant event in the history of spaceflight in terms of its impact on the general public and on the US space program. The death of a crew of seven, which for the first time included civilian astronaut Christa McAuliffe, in a fiery ...

en.wikipedia.org/wiki/Space_Shuttle_Columbia_disaster

On February 1, 2003, the Space Shuttle Columbia disintegrated upon atmospheric entry, killing all seven crew members. The disaster was the second fatal accident in the Space Shuttle program, after Challenger, which broke apart and killed the seven-member crew in 1986.

www.britannica.com/event/Challenger-disaster

Challenger disaster: 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.

www.history.com/topics/1980s/challenger-disaster

The NASA space shuttle Challenger exploded on January 28, 1986, just 73 seconds after liftoff, bringing a devastating end to the spacecraft’s 10th mission. The disaster claimed the lives of all ...

www.history.com/speeches/cause-of-challenger-disaster-revealed

Cause of Challenger Disaster Revealed. William P. Rogers, head of the special commission appointed by President Ronald Reagan to investigate the January 28, 1986, explosion of the space shuttle ...

er.jsc.nasa.gov/seh/explode.html

The Cause of the Accident. The consensus of the Commission and participating investigative agencies is that the loss of the Space Shuttle Challenger was caused by a failure in the joint between the two lower segments of the right Solid Rocket Motor. The specifc failure was the destruction of the seals that are intended to prevent hot gases from ...