Understainding main ideas about the history of the universe?

Question

place the folloving events int the order in which they occurred. place the order number (1 - 7) in the black to the left of each event.

___1. nebula shrinks to form a spinning disk

___2. gravity pulls gases to center of the disk

___3. big bang

___4. the planets form

___5. gas and dust accumulate as a nebula

___6. matter separates into galaxies

___7. gas at the center of the disk becomes hot and dense enough for nuclear fusion to begin.

Answer 1

Except about the motion of stars we scientifically know close to Zilch about the History of the Universe. Any thing that is scientifically assumed is based on theoretical speculations. Or erroneous assumption about cosmological observations.

Answer 2

1. big bang (more like the big unfolding)
2. matter separates into galaxies
3. gas and dust accumulate as a nebula
4. nebula shrinks to form a spinning disk
5. gravity pulls gases to center of the disk
6.the planets form
7.gas at the center of the disk becomes hot and dense enough for nuclear fusion to begin.

Not sure about 6 & 7

The planets have to form before the nuclear fustion starts, becouse it is the solar winds form the sun that blows all remaining gas out of the solar system. The planets can no longer grow.

D. bumstead :)