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Bookmark or Share- Planet - WikipediaThe planets of the Solar System can be divided into categories based on their composition: Terrestrials: Planets that are similar to Earth, with bodies largely composed of rock and metal: Mercury, Venus, Earth, and Mars. At 0.055 Earth masses, Mercury is the smallest terrestrial planet (and smallest planet) in the Solar System.
- All About the Planets | NASA Space Place – NASA Science for KidsDo you want to know more about our solar system's eight planets? Click a planet on the sidebar or choose from below to get started. Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune article last updated July 17, 2019
- The Nine Planets of The Solar System | Eight Planets Without ...The Nine Planets has been online since 1994 and was one of the first multimedia websites that appeared on the World Wide Web. Take an interactive tour of the solar system, or browse the site to find fascinating information, facts, and data about our planets, the solar system, and beyond.
- Overview | Planets – NASA Solar System ExplorationThe inner, rocky planets are Mercury, Venus, Earth, and Mars. NASA's newest rover — Perseverance — landed on Mars on Feb. 18, 2021. The outer planets are gas giants Jupiter and Saturn and ice giants Uranus and Neptune. Beyond Neptune, a newer class of smaller worlds called dwarf planets reign, including longtime favorite Pluto.
- What is a Planet? | Planets – NASA Solar System ExplorationA planet is a celestial body that (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.
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