Also "Supposed earth atmosphere"? You mean... you don't believe in the atmosphere, either?
Also, Armstrong was one person out of many who travelled to space. From many countries. Was he speaker for all of them? He was also one of (checks) 12 people who've been to the moon. Some of them were quite vocal about their experiences.
Also, incredulity is a very poor position to argue from. If you don't understand something, just be honest and say that. You'll get a lot more credit from everyone. And learn some stuff.
