Unfortunately for astronauts

The list of misfortunes occurred in the space race is long and diverse, and is dotted with curious facts. For example, the three members of the Soyuz crew of 11 have the unfortunate honor of being the only humans who have died in outer space stifled by the failure of an air valve in 1971.

Four years earlier, cosmonaut Vladimir M. Komarov became the first man to die in a space mission when his parachute Soyuz 1 were not opened during re-entry.

Others, directly, seemed GAF: Gus Grissom nearly drowned in 1961, when his capsule sank after amerizar in the Pacific; six years later, died along with his colleagues in the fire happened at the launch of Apollo 1.

Incidentally, this fire took place in the same week of the year that the Challenger disaster and the Columbia: January 27, January 28 and February 1 respectively.
Then there are cases like the cosmonaut G. G. Nelyubov, who did not die, but he ruined his career Solita: destined to be the successor of Gagarin, got drunk, get into a fight with an army patrol and refused to apologize.
The result: both his name and his image was deleted from the Soviet space programme.