A cloud of interstellar gas and/or dust (the "solar nebula") is disturbed and collapses under its own gravity. The disturbance could be, for example, the shock wave from a nearby supernova.
As the cloud collapses, it heats up and compresses in the center. It heats enough for the dust to vaporize. The initial collapse is supposed to take less than 100,000 years.
The center compresses enough to become a protostar and the rest of the gas orbits/flows around it. Most of that gas flows inward and adds to the mass of the forming star, but the gas is rotating. The centrifugal force from that prevents some of the gas from reaching the forming star. Instead, it forms an "accretion disk" around the star. The disk …show more content…
Once the larger of these particles get big enough to have a nontrivial gravity, their growth accelerates. Their gravity (even if it's very small) gives them an edge over smaller particles; it pulls in more, smaller particles, and very quickly, the large objects have accumulated all of the solid matter close to their own orbit. How big they get depends on their distance from the star and the density and composition of the protoplanetary nebula. In the solar system, the theories say that this is large asteroid to lunar size in the inner solar system, and one to fifteen times the Earth's size in the outer solar system. There would have been a big jump in size somewhere between the current orbits of Mars and Jupiter: the energy from the Sun would have kept ice a vapor at closer distances, so the solid, accretable matter would become much more common beyond a critical distance from the Sun. The accretion of these "planetesimals" is believed to take a few hundred thousand to about twenty million years, with the outermost taking the longest to form.
Two things and the second brake point. How big were those protoplanets and how quickly did they form? At about this time, about 1 million years after the nebula cooled, the star would generate a very strong solar wind, which would sweep away all of the gas left in the protoplanetary nebula. If a protoplanet was large enough, soon enough, its gravity would pull in the nebular gas, and it would become a gas giant. If not, …show more content…
Then He created light (energy). These four, basic, constituent "elements" were then used to construct a universe. The physical universe was molded, formed fashioned and filled during six days. The earth was formed in the midst of the primal waters on the First Day---the sun, moon and stars were not fashioned until Day Four. Those who suggest otherwise must force Biblical interpretation well beyond all reasonable bounds (Ref. 11). Creation week was a unique, never-to-be-repeated sequence of events during which "time" the ordinary laws of physics as we know them now were suspended. Only when God's creative work was finished was the universe set in motion as a dynamical system. How God does things almost always escapes our ability to discover (Ref. 12). This is especially true of creation week-naturalistic explanations for the solar system can't even begin to retrace God's artisanship in creation. See especially The Uniqueness of Creation