something ive allways wondered....
does the U.S announce to other world powers when we're doing a space launch? like china/russia/etc? so they dont freak out when they see us launching something up there.
I think there are basically two types of launches: first are the standard ones (using Atlas, Delta, Minotaur, etc), and the second would be purely military ones (so whatever rockets the military uses - I have no idea).
For the former: as far as I know that information is all publicly available. I think all such launches are conducted from well-established launch pads (i.e. Cape Canaveral, Vandenberg AFB, Kennedy Space Center) which can only launch one type of rocket each. I suspect that the launches which other countries might get pissed off about are the latter type, especially if they launch on paths which could be misinterpreted as being for weapons. As to whether that information is shared - I don't know, but I wouldn't be at all surprised if it is.