Research topic: solar system

solar system the sun and the surrounding planets, natural satellites , dwarf planets, asteroids, meteoroids, and comets that are bound by its gravity. The sun is by far the most massive part of the solar system, containing almost 99.9% of the system's total mass. The principal members of the sun's retinue are the eight major planets ; other parts of the solar system are discussed in separate articles: see comet , asteroid , and meteor . The Planets In order of increasing average distance from the sun, the planets are Mercury , Venus , earth , Mars , Jupiter , Saturn , ... Read more