- The Earth is a part of the Solar System, which includes the Sun, eight planets, and other celestial bodies.
- The Big Bang Theory explains the origin of the universe approximately 13.8 billion years ago.
- The Solar System is believed to have formed about 4.6 billion years ago.
- The nebular hypothesis proposed by Immanuel Kant and Pierre-Simon Laplace suggests the Solar System formed from a rotating cloud of gas and dust.
- The protostar at the center of the nebula eventually b