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Uranus   Uranus is the seventh planet from the sun so it's extremely cold there.   Uranus orbits on its side.  It is believed that a collision with another large body tilted Uranus's axis so that it spins sideways.  Thus its poles are the closest part of the planet facing the sun.  It takes Uranus 84 Earth years to orbit the sun.  For 42 years, the North Pole gets sunlight and the south pole is dark, and then things reverse. 

   A layer of ice and methane gas in its upper layers give Uranus a blue color.  It does have a rocky core made mostly of iron like Earth.  However, its still mostly a gas/icy/liquid planet (Liquid oceans of water would be found deep into its core where its hotter).  It is the coldest planet in our solar system with temperatures dipping to minus 370 degrees.  This also can be attributed to its sideways orbit which keeps half the planet dark for 42 years.
   Like most of the gas giants, it has rings.  It also has 27 moons.  Wind speeds can reach up to 560 miles per hour on Uranus.  The fasted wind speed on Earth has been measured at 320 M.P.H. in a tornado.  This speed will knock down any manmade feature in its path.  Uranus has been visited by the Voyager 2 space craft in 1986 which flew by at a distance of 50,000 miles.