There have been many theories on how the Solar System formed, but there is only one theory that has been accepted, that would the nebular theory, also known as the nebular hypothesis and solar nebula hypothesis. The nebular hypothesis is …show more content…
The model of Laplace started with an already formed and rotating sun, which its atmosphere was spreading beyond the distance at which the furthest planet would be formed ("Astronomy” n.pag.). Since Pierre Laplace knew nothing about the stars and their source of energy, he assumed that the Sun would start to radiate away its heat, finally causing itself to cool down. In reaction to this cooling, the Sun’s gases would exert pressure, causing itself to contract. As explained by the law of conservation of angular momentum, the reduction in size would be led by an increase in the rotational velocity of the Sun. Centrifugal acceleration would push material outward, while the gravitational attraction would pull the material inward. Once these forces are finally balanced, a disk of material would be left behind on the plane of the equator of the Sun. This progression would have continued through the development of several concentric rings. Each of these concentric rings would then have merged to form a planet. In the same way, the moons of a planet would have created from rings that were produced by the forming planets. Laplace-Kant Nebular Hypothesis is the name that Laplace’s and Kant's theories are often referred to (“solar system” …show more content…
The nebular theory states that the Solar System started as a cloud in the outer space that was concentrated with cold gas and dust, also known as a nebula (“Astronomy” n.pag.). This nebula was located at the location of the Solar System. As gravity usually works, it began to condense the gas into different areas of density. As a result of a disturbance, possibly a supernova, this cloud of gas and dust began to condense, or compressed together under its own gravity force. The denser areas began to grow into masses of matter, which later on, would be the seeds for the formation of the planets, the sun, and moons. Evidence of this can be proved because all of the planets rotate around the sun in the same plane and direction (Msnucleus n.pag.).
A majority of mass from the nebula cloud was attracted to the center by the force of gravity, this was allowed because the center of the disk of spinning gas experienced the least amount of centripetal force. As gravity compact the material in the Sun, mostly hydrogen gas, pressure began to increase and heat the gas. Eventually, pressure and temperatures in this mass became high enough that nuclear fusion started. This fusion was the birth of the sun (“solar system”