Solar System - Wikipedia
The Solar System [d] is the gravitationally bound system of the Sun and the objects that orbit it. [11] It formed about 4.6 billion years ago when a dense region of a molecular cloud collapsed, forming the Sun and a protoplanetary disc.
Solar system | Definition, Planets, Diagram, Videos, & Facts
2024年11月28日 · 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.
Solar System Exploration - NASA Science
The solar system has eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. There are five officially recognized dwarf planets in our solar system: Ceres, Pluto, Haumea, Makemake, and Eris.
Solar System Facts - Science@NASA
Our 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 Milky Way, a barred spiral galaxy with two major arms, and two minor arms.
Chapter 1: The Solar System - NASA Science
Upon completion of this chapter, you will be able to classify objects within the solar system, state their distances of in terms of light-time, describe the Sun as a typical star, relate its share of the mass within the solar system, and compare the terrestrial and Jovian planets.
The solar system—facts and information - National Geographic
2019年3月27日 · Our solar system is made up of the sun and all the amazing objects that travel around it. Learn more about the planets, asteroids, and comets in our solar system. Skip to content
The Solar System: Planets and Formation Explained
2023年8月4日 · 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 eight planets, in order of their distance from the sun.
In Depth | Our Solar System – NASA Solar System Exploration
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 - Simple English Wikipedia, the free encyclopedia
The Solar System is the Sun and all the objects that travel around it. The Sun is orbited by planets, asteroids, comets and other things. Planets and dwarf planets of the Solar System. Compared with each other, the sizes are correct, but the distances are not. The Solar System is about 4.568 billion years old. [1]
Solar System - National Air and Space Museum
The Solar System, located in the Milky Way Galaxy, is our celestial neighborhood. Our Solar System consists of 8 planets, several dwarf planets, dozens of moons, and millions of asteroids, comets, and meteoroids.