Neptune

Neptune is the eighth and farthest planet from the Sun in the Solar System. Neptune's atmosphere is composed primarily of hydrogen and helium. It contains a higher proportion of "ices" such as water, ammonia, and methane. The interior of Neptune is primarily composed of ices and rock. Traces of methane in the outermost regions in part account for the planet's blue appearance. Neptune is named after the ancient Roman god of the seas

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