http://www.army.mil/standto/archive_2015-08-17/?s_cid=standto

you can be an astronaut in the army if you try hard enough. then you can see it first hand. NASA will even take astronauts who served in the army if that is the goal you are setting for yourself.

but if you want to be super skeptic, then i don't see a way to prove that you aren't in the matrix. so don't worry, this is all a video game. you just forgot that you were playing.