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.
Eyes on the Solar System - NASA/JPL - NASA's Eyes
Explore the 3D world of the Solar System. Learn about past and future missions.
Solar System 101 | National Geographic - YouTube
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...
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 | Definition, Planets, Diagram, Videos, & Facts
2 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.
Solar System Exploration - NASA
2023年4月18日 · Download infographics, see pictures, or read facts about the planets, moons, asteroids, meteors, comets and the Kuiper Belt.
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. The universe is filled with billions of star systems. Located inside galaxies, these cosmic...
Science 101: The Solar System - National Geographic Society
2024年12月3日 · 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 asteroids.
Introduction to the Solar System | Earth Science - Lumen Learning
The solar system is the Sun and all the objects that are bound to the Sun by gravity. The solar system has eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Ceres, Makemake, Pluto and Eris are dwarf planets.
Is Earth the only planet in the solar system with plate tectonics?
6 天之前 · Earth is the only body in the solar system that currently exhibits plate tectonics, whose movements explain this surface crack along the San Andreas Fault. (Image credit: Bob Rowan via Getty Images)