Solar System Exploration - NASA Science
WEBSolar System Overview. The solar system has one star, eight planets, five dwarf planets, at least 290 moons, more than 1.3 million asteroids, and about 3,900 comets. It is located in an outer spiral arm of the Milky Way galaxy called the Orion Arm, or Orion Spur.
Solar System - Wikipedia
WEBThe Solar System is the gravitationally bound system of the Sun and the objects that orbit it. It was formed 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
WEB4 days ago · 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: Facts - NASA Science
WEBOur solar system is made up of a star, eight planets, and countless smaller bodies such as dwarf planets, asteroids, and comets. Our solar system orbits the center of the Milky Way galaxy at about 515,000 mph (828,000 kph). We’re in one of the galaxy’s four spiral arms.
The solar system—facts and information - National Geographic
WEBMar 27, 2019 · 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
In Depth | Our Solar System – NASA Solar System Exploration
WEBOur 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.
Planets - NASA Science
WEBThe 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 101 | National Geographic - YouTube
WEBAug 30, 2017 · 23M subscribers. Subscribed. 210K. 32M views 6 years ago #NationalGeographic #SolarSystem #Educational. How many planets are in the solar system? How did it form in the Milky Way galaxy? Learn...
Eyes on the Solar System - NASA/JPL
WEBExplore the 3D world of the Solar System. Learn about past and future missions.
In Depth | Sun – NASA Solar System Exploration
WEBSize and Distance. Our Sun is a medium-sized star with a radius of about 435,000 miles (700,000 kilometers). Many stars are much larger – but the Sun is far more massive than our home planet: it would take more than 330,000 Earths to match the mass of the Sun, and it would take 1.3 million Earths to fill the Sun's volume.
Skip to content