Solar System - Wikipedia
网页General characteristics. Astronomers sometimes divide the Solar System structure into separate regions. The inner Solar System includes Mercury, Venus, Earth, Mars, and the bodies in the asteroid belt. The outer Solar System includes Jupiter, Saturn, Uranus, Neptune, and the bodies in the Kuiper belt. [ 35 ]
Solar system | Definition, Planets, Diagram, Videos, & Facts
网页3 天之前 · Solar system, assemblage consisting of the Sun and those bodies orbiting it: 8 planets with about 210 known planetary satellites; many asteroids, some with their own satellites; comets and other icy bodies; and vast reaches of highly tenuous gas and dust known as the interplanetary medium.
In Depth | Our Solar System – NASA Solar System Exploration
网页Our solar system consists of our star, the Sun, and everything bound to it by gravity – the planets Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune; dwarf planets such as Pluto; dozens of moons; and millions of asteroids, comets, and meteoroids.
Solar System Facts - Science@NASA
网页Structure. Introduction. The solar system includes the Sun, eight planets, five officially named dwarf planets, and hundreds of moons, and thousands of asteroids and comets. Our solar system is located in the Orion Spur of the Milky Way, a barred spiral galaxy that's about 100,000 light years across. Namesake.
The Solar System: Planets and Formation Explained
网页2023年8月4日 · The path that the planet follows around the sun is called its orbit. The main asteroid belt between Mars and Jupiter also divides our solar system into the inner and outer solar system. Here's a bit about each of the …
The solar system—facts and information - National Geographic
网页2019年3月27日 · The solar system, explained. Our solar system is made up of the sun and all the amazing objects that travel around it. The universe is filled with billions of star systems. Located inside...
Solar System Exploration - NASA Science
网页Solar System Overview. The solar system has one star, eight planets, five officially named dwarf planets, hundreds of moons, thousands of comets, and more than a million asteroids. Our solar system is located in the Milky Way, a barred spiral galaxy with two major arms, and two minor arms.
Solar System 101 | National Geographic - YouTube
网页How many planets are in the solar system? How did it form in the Milky Way galaxy? Learn facts about the solar system’s genesis, plus its planets, moons, and...
Our Solar System - NASA Science
网页2016年3月15日 · Our solar system is made up of a star—the Sun—eight planets, 146 moons, a bunch of comets, asteroids and space rocks, ice, and several dwarf planets, such as Pluto. The eight planets are Mercury, Venus, …
Science 101: The Solar System - Education
网页2024年5月22日 · Learn facts about the solar system's genesis, plus its planets, moons, and asteroids. How many planets are in the solar system? How did it form in the Milky Way galaxy?