On this day in 1971, Soviet Russia launched the world’s first space station, the Salyut 1. Unfortunately, it was followed shortly after by one of space exploration’s worst tragedies: the three cosmonauts pictured above died during re-entry, after having completed the first successful space docking. Salyut I was scrapped shortly after, though it would be followed by many others.
Read more about it here. I would’ve put a picture of the station, but there weren’t any good ones worth posting.