List of planets
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Planets in the Solar System
- Terrestrial planets
- Mercury – The planet with the second highest temperature in the Solar System and the closest planet to the Sun.
- Venus – The warmest planet. Sometimes called "Earth's twin" because Venus and Earth are very similar.
- Earth – The only planet that is known to have life. It has one natural satellite, the Moon.
- Mars – Sometimes called the "red planet".
- Phaeton – a planet that some think broke apart to form the asteroid belt, though most astronomers think it never formed.
- Pluto – (disputed) Historically considered the smallest planet, Pluto is now considered a "dwarf planet" by the International Astronomical Union (IAU) when they developed a definition for "planet" on August 24, 2006. Other organizations disagreed.
- Gas giants
- Jupiter – The largest planet in the Solar System.
- Saturn – Sixth planet from the Sun. It has giant rings around it.
- Uranus - Seventh planet from the Sun. It has 11 rings around it.
- Neptune – The farthest planet that we know from the Sun.
- Planet Nine – a hypothetical gas giant planet beyond Neptune. It has not been found, but some astronomers think its gravity pulls on the orbits of many dwarf planets.
- Ceres is the largest asteroid (not mentioning plutinos) in the Solar System's main asteroid belt.
- Haumea is shaped like an egg.
- Makemake crosses paths with Eris.
- Eris follows the most elliptical path of any known official dwarf planet.