NATS 1740 Chapter Notes - Chapter 8: Interstellar Cloud, Close Encounter, Radiometric Dating

• School: York University
• Department: Natural Science
• Course: NATS 1740
• Professor: Tatiana Paulin

Document Summary

Why planets fall into terrestrial and jovian. Existence of comets and asteroids and their locations. General pattern but make allowances for exceptions. Nebular hypothesis- solar system formed by a gravitational collapse of an interstellar cloud of gas. Close encounter hypothesis- solar system formed from globs of gas that had been pulled out of the sun from the near collision with another star. Nebular theory- describes how our solar system formed from a cloud of interstellar dust and gas. Solar system was born from the gravitational collapse of an interstellar cloud of gas called the solar nebula that collapsed under it"s own gravity. Gave birth to the sun at the centre and the planets in a disk around it. H and he were produced with the big bang and other elements were produced later by massive stars and were released into space when they died.