think about it, you first get to yahoo answers, a site that you can ask anything you want. what's the first question that comes to most people's minds? It is an age old question that people who have no knowledge of physics generally don't know, and it's hard to forget the question because after all, we do see the sky every day. Some people in fact think they're being smart-asses because they don't actually know that there is a real answer, they just think its one of those unanswerable questions and want to see what people have to say. is pretty annoying and i think maybe more people should have taken high school physics...