Re:Challenging views? (Score 1)

If you have a cool enough and dense enough cloud it will collapse regardless of size. The difficulty is getting rid of the heat generated from the gravitational energy. If this heat does not escape then the collapse can stop. Nowadays there is dust in these clumps that are very good at radiating away the heat. The first stars didn't have any dust, and how these stars formed is still a mysetry. There are plenty of theories about how they form but the theories are easy when there aren't any observations to constrain them :)