Labels:crt screen | lepton | monitor | sky | tree OCR: STRUCTURE Gas Layer: 9000 km thick Ice Layer 7500 km thick Core: 8000 km in radius Composition The internal structure of Neptune is thought to be very much like that of Uranus. At the center of Neptune lies a core of rock and metal, with thick layer of water methane and ammonia ices above t Surrounding the ice is layer of hydrogen, helium, and methane that reaches to the top of the atmosphere Compared to Uranus, larger proportion of the material in Neptune is dense rock; consequently Neptune although its diameter only 96% that of Uranus is actually 18% more massive than its neighbor. Surr
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