On April 12, 1961, Vostok 1 orbited the earth with Yury Gagarin aboard, making it the first successful manned space flight in history. To mark this international milestone, Cosmonautics Day is celebrated in Russia and various former Soviet countries. Here’s a look at Russia’s history of space exploration through the years.
Sergei Preobrazhensky, Nikolai Sitnikov / TASS
Nikolai Kuleshov / TASS
RIA Novosti Archive
Albert Pushkaryov / TASS
Sergei Preobrazhensky / TASS