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The Nine Planets is an encyclopedic overview with facts and information about mythology and current scientific knowledge of the planets, moons, and other objects in our solar system and beyond.
- Planets
The Planets of the Solar System Detailed information and...
- Solar System
The gas planets are composed primarily of hydrogen and...
- Objects
Why are planets round? What is O B A F G K M? What is the...
- Questions
Frequently asked space questions to help you learn about...
- Buyer’s Guides
Space and Astronomy Product Reviews We review the best...
- Gas Giants
Planets for Kids; Buyer’s Guides. Best Astronomy Binoculars;...
- Moon Phases
February 1 – 8:42 pm / 20:42 February 9 – 2:33 am / 02:33...
- Constellations
The Nine Planets Constellation Facts & Information A...
- Planets
Learn about the eight planets and five dwarf planets in our solar system, their sizes, locations, temperatures, and features. Explore the facts, images, and stories of each planet and dwarf planet with NASA.
The Solar System is the gravitationally bound system of the Sun and the objects that orbit it. It has eight planets, six of which are terrestrial and two are gas giants, and nine dwarf planets, such as Ceres and Pluto.
Our solar system features eight planets, seen in this artist's diagram. Although there is some debate within the science community as to whether Pluto should be classified as a Planet or a dwarf planet, the International Astronomical Union has decided on the term plutoid as a name for dwarf planets like Pluto.
5 ημέρες πριν · Learn about the Sun and the eight planets that orbit around it, as well as their satellites, asteroids, comets, and other features. Explore the origin, evolution, and composition of the solar system with Britannica's articles, videos, and diagrams.
15 Μαρ 2016 · Learn about the Sun, the star at the center of our solar system, and the eight planets that orbit it: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Find out how long it takes each planet to go around the Sun and how many moons they have.
The Solar System has eight planets by the most restrictive definition of the term: the terrestrial planets Mercury, Venus, Earth, and Mars, and the giant planets Jupiter, Saturn, Uranus, and Neptune.
