This guy is full of ****...nice try. The atmosphere, and the rocket exhaust are NOT part of the mass of the rocket. For every action, there is an equal and opposite reaction. Anyone who has fired a gun has certainly felt the opposite reaction of the bullet being forced, under very high pressure, from the barrel. Would a gun fire in the vacuum of space? The gunpowder needs oxygen to burn, and unless the bullet casing is airtight, with air - or oxygen - present, no, it won't. A rocket engine has its own supply of oxygen, so it will fire in a vacuum. The incredible force, or thrust, of the exhaust simply moves the rocket forward. It doesn't need anything to press against.
We did go to the moon. I've been in an observatory when a laser was fired at the reflector that was set up there, and about 2 1/2 seconds later, it was reflected back. Some people say, "Well, the reflector could've been sent up there by a probe. Man didn't go there!" Well, a probe would need a rocket that works in the vacuum of space, so this goofball's theory is toast! Ever look up and see the space station pass overhead? There's no air up there, yet manned and unmanned ships go up and come back all the time.
OK, I'm done. :BigGrin: