Christa McAuliffe a result. On January 28, 1986, McAuliffe boarded "Challenger" with the other six crew members of STS-51-L. Just 73 seconds into its flight at an altitude of 48,000 feet, the shuttle broke apart, resulting in the deaths of all seven crew members. According to NASA, it was in part because of the excitement over her presence on the shuttle that the accident had such a significant effect on the nation. Many schoolchildren were viewing the launch live, and media coverage of the accident was extensive. The Presidential Commission on the Space Shuttle "Challenger" Accident—also known as the Rogers Commission—was formed
Christa McAuliffe to investigate the disaster. It determined that the accident was due to a failure of rubber O-rings made by Morton-Thiokol that provided a pressure seal in the aft field joint of the shuttle's right Solid Rocket Booster. The failure of the O-rings was attributed to a design flaw, as their performance could be too easily compromised by factors that included the low temperature on the day of launch. The Commission found that O-ring resiliency is directly related to temperature and due to the low temperature at launch—36 degrees Fahrenheit or 15 degrees lower than the next coldest previous launch—it was