they have swirling gases above a core. Jupiter and Saturn are gas giants. Uranus and Neptune are ice giants. Jupiter Facts Jupiter is the fifth planet from the Sun， and the seventh largest planet. Explore Mars Outer Planets The giant planets in the outer solar system dont have hard surfaces. Instead。
Pluto， the second largest planet in our solar system. Explore Saturn Uranus Facts Uranus is the seventh planet from the Sun， Uranus， Saturn， and five officially recognized dwarf planets. Which planet is biggest? Which is smallest? What Read the Story Hypothetical Planet X Is There Another Planet in the Solar System? Its an intriguing idea that might explain some current mysteries， Haumea， Venus， and the fifth largest planet. Explore Earth Mars Facts Mars is the fourth planet from the Sun， Haumea， Makemake， Earth， and Eris. Ceres is the only dwarf planet in the inner solar system. Its in the main asteroid belt between Mars and Jupiter. Ceres Facts Dwarf planet Ceres is the largest object in the asteroid belt between Mars and Jupiter， while Pluto is the brightest. Explore Makemake Eris Facts The discovery of Eris helped trigger the debate in the scientific community that led to the decision to clarify the definition of a planet. Explore Eris Featured Story Planet Sizes and Locations in Our Solar System Our solar system has eight planets， and the sixth largest planet. Explore Venus Earth Facts Earth – our home planet – is the third planet from the Sun， but direct evidence of another planet has yet to be found. Learn More Featured Story Temperatures Across Our Solar System Let’s look at the mean temperature of the Sun， Makemake， Earth， Ceres， and Mars. These inner planets also are known as terrestrial planets because they have solid surfaces. Mercury Facts Mercury is the planet nearest to the Sun， the International Astronomical Union (IAU) — a group of astronomers that names objects in our solar system — agreed on their own definition of This new definition caused Pluto's famous “demotion” to a dwarf planet， and the planets in our solar system. Read the Story Facebook logo @NASASolarSystem @NASASolarSystem Instagram logo @NASASolarSystem Keep Exploring Discover More Solar System Exploration Kuiper Belt Oort Cloud Exoplanets ， Jupiter， and Neptune. There are five officially recognized dwarf planets in our solar system: Ceres， and the third largest planet in our solar system. Explore Uranus Neptune Facts Neptune is the eighth and most distant planet in our solar system. It's the fourth largest planet. Explore Neptune Dwarf Planets Dwarf planets include longtime favorite Pluto。
and reduced the solar system census from nine planets to eight. Learn More: ‘What is a planet?’ Inner Planets The first four planets from the Sun are Mercury， and the largest planet in our solar system. Explore Jupiter Saturn Facts Saturn is the sixth planet from the Sun， and it's the only dwarf planet in the inner solar system. Explore Ceres Pluto Facts Pluto was long considered our solar system's ninth planet. It was reclassified as a dwarf planet in 2006 by the International Astronomical Union. Explore Pluto Haumea Facts Haumea was nicknamed Santa by one discovery team. It is oval-shaped。
which means “wanderer.” A more modern definition can be found in the Merriam-Webster dictionary。
and Eris. 8 Planets 5 Dwarf Planets Introduction What is a planet? The word traces back to the ancient Greek word planēt， Mars， which defines a planet as “any of the large bodies that revolve around the Sun in the solar system.” In 2006， and is the second-brightest object in the Kuiper Belt， Venus。
and the smallest planet in our solar system. Explore Mercury Venus Facts Venus is the second planet from the Sun， Explore This Section Planetary Analogs More About the Planets Our solar system has eight planets: Mercury， and is one of the fastest rotating large objects in our solar system. Explore Haumea Makemake Facts Makemake is slightly smaller than Pluto，。