Un día como hoy en 1971: Soyuz 11 is launched. The mission ends in disaster when all three cosmonauts, Georgy Dobro

Soyuz 11 was the only crewed mission to board the world's first space station, Salyut 1. The crew – Georgy Dobrovolsky, Vladislav Volkov, and Viktor Patsayev – arrived at the space station on 7 June 1971, and departed on 29 June 1971. The mission ended in disaster when the crew capsule depressurised during preparations for re-entry, killing the three-person crew. The crew members of Soyuz 11 are the only humans to have died in space.