Uranus is the seventh planet in the Solar system. It is surrounded by mystery because along with Mercury, it is one of the planets we know less about. We have never even sent a probe to study it. The only up-close photos we have of it were taken by the Voyager 2 spacecraft as it passed it by on January 1986 on its way out of the Solar system. But what we know of Uranus is very interesting.

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