Pluto By the Numbers
Pluto was once our solar system''s ninth planet, but has been reclassified as a dwarf planet. It''s located in the Kuiper Belt.
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Solar System Tour
Pluto & Kuiper Belt Oort Cloud Wanderers Movie Fact Sheets & Posters Other Planetary Links Chronology of Lunar and Planetary Exploration
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The Sun By the Numbers
The Sun is the star at the heart of our solar system. Its gravity holds the solar system together, keeping everything – from the biggest planets to the smallest bits of debris – in its orbit.
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In Depth | Sun – 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.
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Planet Compare
NASA''s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
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RPS 3D Viewer
This site is maintained by the Planetary Science Communications team at NASA''s Jet Propulsion Laboratory for NASA''s Science Mission Directorate.
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Solar System | NASA Space Place – NASA Science for Kids
Solar System Hello, Pluto! In July of 2015, a spacecraft named New Horizons arrived at Pluto after a long journey. It took amazing pictures of this dwarf planet and will
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All About the Planets | NASA Space Place – NASA Science for Kids
All About the Planets Our solar system is home to eight amazing planets. Some are small and rocky; others are big and gassy. Some are so hot that metals would melt on the
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NASA/JPL Eyes
NASA''s Solar System Interactive (also known as the Orrery) is a live look at the solar system, its planets, moons, comets, and asteroids, as well as
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Mars By the Numbers
Mars is the fourth planet from the Sun, and the seventh largest. It''s the only planet we know of inhabited entirely by robots.
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Solar System Exploration
Our solar system includes the Sun, eight planets, five officially named dwarf planets, hundreds of moons, and thousands of asteroids and comets. Our solar system is
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Planet Sizes and Locations in Our Solar System
Mars, the red planet, is the seventh largest planet in our solar system. Mars is about half the width of Earth, and
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Planets
Using this new definition, there are eight planets in the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. Pluto was re-classified as a “minor planet”.
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Bibliography
NASA''s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
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StarChild: The Planets and Dwarf Planets
Listen to an audio version of this page. A planet is a large space object which revolves around a star. It also reflects that star''s light. Eight planets have been discovered in our solar system.
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In Progress
NASA''s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
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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;
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