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Tuesday, June 6, 2017
Soyuz 11 launched 1971
Soyuz 11 crew: Dobrovolsky, Volkov, Patsayev
Soyuz 11, launched June 6, 1971, was manned by Commander Georgy Dobrovolsky, Flight Engineer Vladislav Volkov and Test Engineer Viktor Patsayev. They docked with Salyut 1 but had to replace part of the ventilation system before they could board her.
Upon re-entry, the capsule depressurized too early, killing the crew. They are the only known humans to have died in space.