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Bookmark or Share- What is a Planet? - NASA ScienceA 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 neighborhood around its orbit.
- Planet | Definition, Characteristics, & Facts | BritannicaPlanet, broadly, any relatively large natural body that revolves in an orbit around the Sun or around some other star and that is not radiating energy from internal nuclear fusion reactions. There are eight planets orbiting the Sun in the solar system.
- About the Planets - Science@NASAEarth – our home planet – is the third planet from the Sun, and the fifth largest planet.
- All About the Planets | NASA Space Place – NASA Science for KidsScience and Tech. Educators. All About the Planets. Our solar system is home to eight amazing planets. Some are small and rocky; others are big and gassy. ... 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 Explore All the Planets.
- Planets | NASA Space Place – NASA Science for KidsHow Many Moons Does Each Planet Have? We have one, but some planets have dozens. explore; What's It Like Inside Jupiter? Jupiter's core is very hot and is under tons of pressure! explore; A Planet Without a Sun? Astronomers may have found a planet without a sun! explore; Space Volcanoes!
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