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  • 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
  • Planet Compare - NASA Solar System Exploration
    NASA’s real-time science encyclopedia of deep space exploration Our scientists and far-ranging robots explore the wild frontiers of our solar system
  • RPS 3D Viewer - NASA Solar System Exploration
    NASA’s real-time science encyclopedia of deep space exploration Our scientists and far-ranging robots explore the wild frontiers of our solar system
  • In Depth | Sun – NASA Solar System Exploration
    The Sun is the largest object in our solar system Its diameter is about 865,000 miles (1 4 million kilometers) Its gravity holds the solar system together, keeping everything from the biggest planets to the smallest bits of debris in orbit around it
  • In Depth | Moons – NASA Solar System Exploration
    There are hundreds of moons in our solar system – even asteroids have been found to have small companion moons Of the terrestrial (rocky) planets of the inner solar system, neither Mercury nor Venus have any moons at all, Earth has one and Mars has its two small moons
  • Pluto By the Numbers – NASA Solar System Exploration
    Pluto was once our solar system's ninth planet, but has been reclassified as a dwarf planet It's located in the Kuiper Belt
  • In Depth | Kuiper Belt – NASA Solar System Exploration
    The Kuiper Belt is one of the largest structures in our solar system – others being the Oort Cloud, the heliosphere, and the magnetosphere of Jupiter Its overall shape is like a puffed-up disk or donut
  • Jupiter - NASA Solar System Exploration
    Jupiter is the largest and oldest planet in our solar system If Jupiter was a hollow shell, 1,000 Earths could fit inside Jupiter has the shortest day in the solar system, taking about 9 9 hours to spin around once on its axis
  • Asteroids, Comets Meteors - NASA Solar System Exploration
    Our solar system’s small bodies – asteroids, comets, and meteors – pack big surprises These chunks of rock, ice, and metal are leftovers from the formation of our solar system 4 6 billion years ago
  • 18479 Search Results for solar-system-planets-facts
    Have you ever wondered how many stars you can see at night? From a perfect dark sky location, free from any light pollution, a person with excellent vision may observe a few thousand stars in the sky at one time! Sadly, most people don’t enjoy pristine dark skies – and knowing your sky’s brightness will help you navigate the night sky





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