I don't believe Deomons, Ghosts, or Angels are real. There is no proof what so ever if any one can find me proof or a link to the evidence that they are real plz show me.
Really? Huh. Science has never seen stars form the way they say they do... There really has never been a full point A to point B example of star formation viewed by humans.
Well I'm not an astronomist so I can't really answer this one, but please don't generalize lack of data on the whole science, since astronomy is only a part of it.
Correction from rereading your statement and a typo.
They are trying to explain what we do know. The hypothesis that there is a cloud out there is just an educated guess based on the evidence. They aren't claiming it does exist.
