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Neptune's atmosphere is composed of hydrogen, helium, methane and ammonia. Its blue color is from the methane. It is surrounded by huge swirls of clouds and storms. There is a very faint collection of rings made up of pieces of material as big as cars and trucks. Neptune's core is thought to be made up of liquid rock that gradually turns into an ocean made up of hydrogen, helium, ammonia, methane and water.

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9y ago

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