Challenger shuttle disaster

Extracted Attributes

Space Shuttle Challenger disaster

On January 28, 1986, Space Shuttle Challenger broke apart 73 seconds into its flight, killing all seven crew members. The spacecraft disintegrated about 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). It was the first fatal accident involving an American spacecraft while in flight. The mission, designated STS-51-L, was the 10th flight for the orbiter and the 25th flight of the NASA's Space Shuttle program. The crew was scheduled to deploy a commercial communications satellite and study Halley's Comet while they were in orbit, in addition to taking schoolteacher Christa McAuliffe into space under the Teacher in Space Project. This latter task resulted in a higher-than-usual media interest in and coverage of the mission, and the launch and subsequent disaster were seen live in many schools across the United States. The cause of the disaster was the failure of the primary and secondary O-ring seals in a joint in the right Space Shuttle Solid Rocket Booster (SRB). The record-low temperatures on the morning of the launch had stiffened the rubber O-rings, reducing their ability to seal the joints. Shortly after liftoff the seals were breached, and hot pressurized gas from within the SRB leaked through the joint and burned through the aft attachment strut connecting it to the external propellant tank (ET), then into the tank itself. The collapse of the ET's internal structures and the rotation of the SRB that followed propelled the shuttle stack, traveling at a speed of Mach 1.92, into a direction that allowed aerodynamic forces to tear the orbiter apart. Both SRBs detached from the now-destroyed ET and continued to fly uncontrollably until the range safety officer (RSO) sent a signal to destroy them. The crew compartment containing human remains, and many other fragments from the shuttle, were recovered from the ocean floor after a three-month search and recovery operation. The exact timing of the deaths of the crew is not known, but several crew members are thought to have survived the initial breakup of the spacecraft. The orbiter had no escape system, and the impact of the crew compartment at terminal velocity with the ocean surface was too violent to be survivable. The disaster resulted in a 32-month hiatus in the Space Shuttle program. President Ronald Reagan created the Rogers Commission to investigate the accident. The commission criticized NASA's organizational culture and decision-making processes that had contributed to the accident. Test data since 1977 had demonstrated a potentially catastrophic flaw in the SRBs' O-rings, but neither NASA nor SRB manufacturer Morton Thiokol had addressed this known defect. NASA managers also disregarded engineers' warnings about the dangers of launching in low temperatures and did not report these technical concerns to their superiors. As a result of this disaster, NASA established the Office of Safety, Reliability, and Quality Assurance, and arranged for deployment of commercial satellites from expendable launch vehicles, rather than from a crewed orbiter. The construction of a new Space Shuttle orbiter, Endeavour, was approved in 1987 to replace Challenger, and the new orbiter first flew in 1992. Subsequent missions were launched with redesigned SRBs and their crews wore pressurized suits during ascent and reentry. In February 2003 the Space Shuttle Columbia disintegrated during re-entry. The Columbia Accident Investigation Board concluded that NASA had failed to learn lessons from the Challenger disaster, which resulted in the second disaster.

Web Search Results

• Challenger Accident | History | Research Starters | EBSCOhost

  RESEARCH STARTER # Challenger Accident The Challenger accident occurred on January 28, 1986, when the space shuttle Challenger tragically exploded shortly after launch, resulting in the deaths of all seven crew members. The mission was intended to engage in scientific research, including studying Comet Halley and deploying a satellite. However, the launch took place under concerning weather conditions, with temperatures near freezing, which had never been tested for shuttle launches before. Despite warnings from engineers regarding the solid rocket booster’s O-ring design, NASA proceeded with the launch, leading to a catastrophic failure just 73 seconds after liftoff. [...] In the aftermath, a presidential commission investigated the disaster, revealing deep-seated issues within NASA's management and engineering practices. The findings highlighted a failure to adequately address known design flaws, ultimately concluding that the accident was not inevitable but rather a result of organizational shortcomings and budget pressures. The Challenger tragedy served as a critical moment in the history of space exploration, prompting significant changes in NASA's operational protocols and safety measures. It also underscored the importance of prioritizing safety within complex technological programs. The incident remains a poignant reminder of the risks associated with space travel and the need for rigorous design and oversight in aerospace missions. [...] ### Significance The Challenger accident was the worst disaster in nearly twenty-five years of manned spaceflight and the first time U.S. astronauts had been lost during a mission; it sent a shock wave throughout the nation. A presidential commission was swiftly set up to investigate the accident. Chaired by former U.S. secretary of state William P. Rogers, the commission included among its members such dignitaries as Nobel laureate Richard P. Feynman, former astronaut Neil Armstrong, former test pilot General Chuck Yeager, and the first American woman in space, Sally Ride. The Challenger accident brought most of the U.S. space program to a temporary halt.

• Space Shuttle Challenger disaster - Wikipedia

  The mission, designated STS-51-L, was the 10th flight for the orbiter and the 25th flight of the NASA's Space Shuttle program. The crew was scheduled to deploy a commercial communications satellite and study Halley's Comet while they were in orbit, in addition to taking schoolteacher Christa McAuliffe into space under the Teacher in Space Project. This latter task resulted in a higher-than-usual media interest in and coverage of the mission, and the launch and subsequent disaster were seen live in many schools across the United States. [...] As a result of this disaster, NASA established the Office of Safety, Reliability, and Quality Assurance, and arranged for deployment of commercial satellites from expendable launch vehicles, rather than from a crewed orbiter. The construction of a new Space Shuttle orbiter, Endeavour, was approved in 1987 to replace Challenger, and the new orbiter first flew in 1992. Subsequent missions were launched with redesigned SRBs and their crews wore pressurized suits during ascent and reentry. In February 2003 the Space Shuttle Columbia disintegrated during re-entry. The Columbia Accident Investigation Board concluded that NASA had failed to learn lessons from the Challenger disaster, which resulted in the second disaster. ## Background ### Space Shuttle Main article: Space Shuttle [...] | v t e Space Shuttle Challenger (OV-099) | | Flights | STS-6 STS-7 STS-8 STS-41-B STS-41-C STS-41-G STS-51-B STS-51-F STS-61-A STS-51-L | | Status | Out of service - Challenger disaster (destroyed) - January 28, 1986 (STS-51-L) | | Related | Rogers Commission STS-61-F STS-61-M Challenger flag The Dream Is Alive (1985 documentary) Challenger "Challenger (1990 film)") (1990 film) When We Left Earth: The NASA Missions (2008 documentary miniseries) The Challenger Disaster (2013 film) Challenger: The Final Flight (2020 documentary miniseries) | | v t e Space Shuttle program |

• Space Shuttle Challenger Disaster

  On January 28, 1986, almost two decades. NASA's Challenger space shuttle exploded 73 seconds into its flight. The explosion killed all seven crew members aboard

• The NASA space shuttle Challenger exploded 40 years ago, on ...

  The NASA space shuttle Challenger exploded 40 years ago, on January 28, 1986, just 73 seconds after liftoff. The disaster claimed the lives

• STS-51-L - Wikipedia

  | v t e Space Shuttle Challenger (OV-099) | | Flights | STS-6 STS-7 STS-8 STS-41-B STS-41-C STS-41-G STS-51-B STS-51-F STS-61-A STS-51-L | | Status | Out of service - Challenger disaster (destroyed) - January 28, 1986 (STS-51-L) | | Related | Rogers Commission STS-61-F STS-61-M Challenger flag The Dream Is Alive (1985 documentary) Challenger "Challenger (1990 film)") (1990 film) When We Left Earth: The NASA Missions (2008 documentary miniseries) The Challenger Disaster (2013 film) Challenger: The Final Flight (2020 documentary miniseries) | | v t e U.S. Space Shuttle missions | [...] | v t e STS-51-L | | Space Shuttle Challenger disaster | | Main articles | Space Shuttle Challenger Timeline of the STS-51-L mission | | Crew | Dick Scobee Michael J. Smith Judith Resnik Ellison Onizuka Ronald McNair Gregory Jarvis Christa McAuliffe | | Related | Rogers Commission Report Space Shuttle Solid Rocket Booster TDRS-B Challenger flag Challenger Center for Space Science Education Challenger "Challenger (1990 film)") (1990 film) The Challenger Disaster (2013 film) Challenger: The Final Flight (2020 documentary miniseries) | | v t e Space Shuttle Challenger (OV-099) | [...] Retrieved from "" Categories: 1986 in spaceflight Space accidents and incidents in the United States Space Shuttle missions Space program fatalities Space Shuttle Challenger disaster Spacecraft launched in 1986 1986 in Florida January 1986 20th-century rocket launches Rocket launch failures Space missions that ended in failure Hidden categories: Articles with short description Short description is different from Wikidata Use American English from January 2014 All Wikipedia articles written in American English Use mdy dates from May 2012 Source attribution CS1 maint: url-status CS1 maint: deprecated archival service Commons category link from Wikidata STS-51-L Add topic