Planet - Wikipedia
WebPlanet. The eight planets of the Solar System with size to scale (up to down, left to right): Saturn, Jupiter, Uranus, Neptune (outer planets), Earth, Venus, Mars, and Mercury (inner planets) A planet is a large, rounded astronomical body that is neither a star nor its remnant.
Solar System - Wikipedia
WebGeneral characteristics. Astronomers sometimes divide the Solar System structure into separate regions. The inner Solar System includes the Mercury, Venus, Earth, Mars and bodies in the asteroid belt. The outer Solar System includes the Jupiter, Saturn, Uranus, Neptune and bodies in the Kuiper belt. [30]
Earth - Wikipedia
WebEarth is the third planet from the Sun and the only astronomical object known to harbor life. This is enabled by Earth being a water world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its global ocean, covering 70.8% of Earth's crust.
List of planets - Simple English Wikipedia, the free encyclopedia
WebBeginning. Planets in the Solar System. Other. Dwarf planets. Exoplanets. Definition of a planet. List of planets. This is a list of two types of planets: standard planets and dwarf planets, in the Solar System . Planets in the Solar System. Terrestrial planets.
Solar System - Simple English Wikipedia, the free encyclopedia
WebThere are eight planets in the Solar System. From closest to farthest from the Sun, they are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. The first four planets are called terrestrial planets. They are mostly made …
Mars - Wikipedia
WebMars is the fourth planet from the Sun. The surface of Mars is orange-red because it is covered in iron (III) oxide dust, giving it the nickname " the Red Planet ". [21] [22] Mars is among the brightest objects in Earth's sky, and its high-contrast albedo features have made it a common subject for telescope viewing.
Definition of planet - Wikipedia
WebA planet can be an astronomical body that dynamically dominates its region (that is, whether it controls the fate of other smaller bodies in its vicinity) or it is defined to be in hydrostatic equilibrium (it has become gravitationally rounded and compacted).
Planet - Simple English Wikipedia, the free encyclopedia
WebA planet is a large object such as Venus or Earth that orbits a star. Planets are smaller than stars, and they do not make light . Jupiter is the biggest planet in the Solar System , while the smallest planet in the Solar System is Mercury .
Terrestrial planet - Wikipedia
WebA terrestrial planet, telluric planet, or rocky planet, is a planet that is composed primarily of silicate, rocks or metals. Within the Solar System, the terrestrial planets accepted by the IAU are the inner planets closest to the Sun: Mercury, Venus, Earth and Mars.
What is a Planet? - NASA Science
WebAn Evolving Definition. When the ancient Greeks came up with their definition of planets, they counted Earth's Moon, and Sun as planets along with Mercury, Venus, Mars, Jupiter, and Saturn. Interestingly, Earth was not considered a planet, but rather was thought to be the central object around which all the other celestial objects orbited.
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