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Seasons of Uranus. The planet is tipped onto its side, so it orbits lying down. This means that each season is twenty years long. (Graphic credit: M.Showalter & M. Gordon, SETI institute) Mona Evans, "Uranus Facts for Kids"

Uranus. Its blue-green color comes from methane crystals in the atmosphere. The rings do circle the equator, but Uranus is tipped so much on its axis that it orbits on its side. (Image credit: Voyager, NASA) Mona Evans, "Uranus Facts for Kids"

Uranus is the third largest planet in our Solar System. Uranus has nine major rings and 27 known moons. This image, taken by the Hubble Space Telescope in infrared reveals cloud structures not normally visible. Methane gas in the upper atmosphere absorbs red light, giving the planet its blue-green color. Uranus is spinning on its side, probably because of a collision with a large object early in the Solar System's history.

Uranus [Infographic] - everything you always wanted to know about the third largest planet!

Uranus. Its 27 moons are named after the characters from the works of William Shakespeare and Alexander Pope. (NASA)

Miranda, moon of Uranus. The surface is probably mostly water ice, rather like some of the moons of other outer planets. But it's a jumble of older and younger surfaces, large canyons, broken terrain and other evidence of past geological activity. Mona Evans, "Literary Moons of Uranus"

Neptune is the outermost of the gas giants, like uranus, it has an atmosphere rich in hydrogen, helium, and methane, and a faint ring system.

Saturn on June 13, 2012. A beautiful, dramatic image – unprocessed – from the Cassini probe 1.6 million miles from the planet. Wow! Even at that distance the rings don't completely fit into the picture. (Image credit: NASA/JPL/Space Science Institute) ©Mona Evans, "10 Amazing Facts about the Solar System"

Neptune has rings. Four rings, made of diffuse fine material, were photographed by Voyager 2. (Photo: JPL) ©Mona Evans, "10 Amazing Facts about the Solar System"


All the planets in one picture…

All the planets in one picture...