Flyer75 writes:
Well, where do comets come from then??? Why do we still have comets around if they only last 100,000 years or less? When did they form? Just 100,000 years ago and if so, how? Will there be anymore comets when these ones burn up? Or do Oort Clouds really exist?
Well, I don;t really know about comets. But I suspect that if scientists hypothesize an "Oort cloud", they probably have some very good reasons to do so. They're scientists afterall, not really into just making some stuff up without any evidence whatsoever.