refer to
expansion and cooling of the universe,
subsequent loss of particle kinetic energy,
gravitational attraction between particles,
upiness of the gas cloud that then allows gravitational collapse
2006-09-06 20:05:42 · 2 answers · asked by misssylonely 1 in Science & Mathematics ➔ Astronomy & Space
You pretty much have the whole story there in front of you. There are lots of website that discuss the formation of structure in the univerese. I suggest you consult one of them and use your head to complete your assignment. Here is ONE link to get you started.
http://en.wikipedia.org/wiki/Large-scale_structure_of_the_cosmos
Look up "Jeans Mass" to find out how "upiness" (lumpiness?) contributes.
2006-09-07 14:11:18 · answer #1 · answered by Mr. Quark 5 · 0⤊ 0⤋
Only two words are essential: the gravitational contraction.
Th
2006-09-06 23:03:24 · answer #2 · answered by Thermo 6 · 0⤊ 0⤋