The Solar System: Sun and Planets

Abstract

The Universe is all the mass that exists, spanning from the largest galaxies to the tiny subatomic particle. Furthermore, as mass is exchangeable with energy, the Universe also encompasses all forces and energies that exist therein. Hence, the Universe is unlimited in time and shape and infinite in its variety of forms. Billions of cosmic bodies of differing size and structure make up the Universe; the stars, planets, and the interstellar matter are principal forms of such cosmic bodies.