events
The crew of the Soviet Soyuz 11 spacecraft are killed when their air supply escapes through a faulty valve.
Related Wikipedia articles
Soviet Union
Country in Eurasia (1922–1991)
The Union of Soviet Socialist Republics (USSR), commonly known as the Soviet Union, was a transcontinental country that spanned much of Eurasia from 1922 until it dissolved in 1991. During its existence, it was the largest country by area, extending across eleven time zones and…Source: Wikipedia (CC BY-SA)
Soyuz 11
1971 Soviet spaceflight, first spaceflight to visit a space station, and fatal disaster
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…Source: Wikipedia (CC BY-SA)
June 30
Day of the year
June 30 is the 181st day of the year in the Gregorian calendar; 184 days remain until the end of the year.Source: Wikipedia (CC BY-SA)