This document provides information about the planets in our solar system as well as other celestial bodies such as comets, asteroids, meteoroids, meteors and meteorites. It discusses key facts about each planet including their distance from the sun, rotation period, temperature and composition. It also notes some past and future space missions to various planets. Comets are described as having a coma when nearing the sun and evaporating. Asteroids are defined as small, rocky bodies orbiting the sun, with Ceres being the largest. Meteoroids are particles from asteroids or comets that become meteors when burning up in the atmosphere or meteorites if they impact Earth.