Nckdictator posted:

That would be fairly difficult to happen for a very simple reason: the first step. The airlock of a spacecraft would have to be large enough for both astro/cosmonauts to step out at the same time, because neither country is going to want to be the second person on the moon. Then there's also the interesting idea that the USSR might choose a woman cosmonaut; imagine an American man and Soviet woman, or American woman and Soviet man being the first on the moon. I imagine either would make huge butterflies socially.