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SPACECRAFT ACCIDENTS: EXAMINING THE PAST, IMPROVING THE FUTURE Soyuz 11. Bryan Palaszewski working with the Digital Learning Network NASA Glenn Research Center. Soyuz 11 (USSR). Launched: June 6, 1971 Mission: First occupancy of a long duration space station
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SPACECRAFT ACCIDENTS:EXAMINING THE PAST, IMPROVING THE FUTURESoyuz 11 Bryan Palaszewski working with the Digital Learning Network NASA Glenn Research Center
Soyuz 11 (USSR) • Launched: June 6, 1971 • Mission: First occupancy of a long duration space station • On return to Earth on June 29, 1971, a valve accidentally opened, allowing the air to escape the spacecraft. The crew did not survive.
Soyuz 11 (USSR) Results • There were no flights of Russian human crew until September 27, 1973. • Many robotic test flights were conducted to assure safety. • Spacecraft (Soyuz 12) was redesigned to carry 2 persons with spacesuits. • Original (Soyuz 11) spacecraft was considered so safe that spacesuits were not required for the 3 cosmonauts.