By the way, while logged in, you can switch the user to a guest on the same instance. That way, you can easily switch between a logged-in and logged-out view. I don’t know what it would do to your filters. I guess it won’t help you, but might be usefull anyway.
Korolev is the father of the Soviet rocket program, argubly its most important person, somewhat akin to von Braun in the USA. He’s a designer of R7, direct predecessor of Soyuz that is still flying people to space. You know the shape when the boosters/first stage of Soyuz disconnect from the central stage? It’s called Korolev’s cross to this day. It’s definitely named after the scientist. And anyway, russians didn’t have a king, they had a tzar.