While it’s definitely true they could’ve intercepted comms, I don’t know that they did do that. And telescopes would only get them to confirming things up to orbit probably.
I still think it’s likely they knew it was real, I’ve just never been able to confirm that they did for myself and so the argument I’m using it much weaker without that piece of evidence. Not to mention that Russia has had state actors promoting the conspiracy theory in recent years which makes things confusing
Well it’s certainly not proof per se*, but considering all the bugs and spies the USSR planted it seems like a no brainer that they would be listening in on any and all unencrypted over the air communications.
Just FYI, the phrase is “per se”, not “per say”. It’s Latin for “by itself”.