And the Culture. And if you look beyond Western sci-fi, there was plenty of that stuff in the USSR. Most of it not particularly good, but https://en.wikipedia.

And the Culture. And if you look beyond Western sci-fi, there was plenty of that stuff in the USSR. Most of it not particularly good, but https://en.wikipedia.org/wiki/Noon_Universe https://en.wikipedia.org/wiki/Noon_Universe and Ivan Yefremov's books (most notably https://en.wikipedia.org/wiki/Andromeda:_A_Space-Age_Tale https://en.wikipedia.org/wiki/Andromeda:_A_Space-Age_Tale) stand out.