Here is another tale from my house for you, kay..
James, 5, and Seth, 7, were sitting on the couch discussing outerspace, space walking, the space shuttle, etc. I heard them discussing it for quite some time. The conversation eventually changed, and they went their seperate ways to other activities. Seth went outside to play, but I noticed James lingering in the open door, looking out. He would step out for a moment, then come back in. This happened repeatedly. After a few moments, I told James to shut the door because it was 95 degrees outside and the room was heating up. He came in and closed the door and watched Seth out the window very closely. A few minutes later he opened the door again and started the same routine... step out.. step in. Finally he went all the way out on the porch, so I shut the door.
As I walked away, we heard sudden pounding on the door.. very frantic. James was rattling the doorknob but couldn't get it open. He then moved to the window and was banging on it with all his might. Tears were running down his face, and he had one hand on his throat. He was obviously terrified of something. I opened the door quickly to see what was wrong. He came running in saying "I couldn't breathe! I couldn't breathe!!" The tears were still flowing. When I asked him why he couldn't breathe he said, "Seth said if you go outside, there is no air. You have to wear special suits or you die!" Trying hard to hide my laughter, I said "That is in space, sweetheart. Not here on earth." His tears dried up as quickly as they came, he flashed me a surprised smile and said "Oh!".. and ran off. That was it. No other comment from him.