Facts
Real facts about everything, written for your grade.
There are eight planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
Our solar system has eight planets. In order from the Sun, they are:
A trick to remember the order: My Very Excited Mother Just Served Us Noodles.
Pluto used to be called the ninth planet. In 2006, the scientists who name things in space decided Pluto is a dwarf planet instead.
Pluto is one of five dwarf planets scientists know well: Ceres, Pluto, Haumea, Makemake and Eris.
The eight planets, the five dwarf planets and Pluto's 2006 reclassification by the International Astronomical Union are from NASA's Planets page (updated 28 Oct 2026, read 6 Nov 2026).
NASA's own Pluto pages give the reasons for the change; this answer doesn't try to.
Planets in order and planets to scale go further, and the classroom planets wheel is on Peabody Teach.
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