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In 1718, William Herschel first discovered Uranus with the aid of a telescope. Originally thought to be a star, Uranus is so far from the sun it takes around 85 years to complete orbit.
Like Nepture, Uranus is an ice giant. Its atmosphere is mostly hydrogen and helium with traces of water and ammonia. Also like Neptune, Uranus gets its bluey green colour from the methane gas in its atmosphere.
Uranus has two sets of rings. The first set was discovered back in 1977 and the Hubble Space Telescope discovered the second set more recently in 2003.
Uranus is named after the Greek God of the sky.
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