Az óriásbolygók magja miért szilárd?

Pl. elég nagy nyomáson az akár többszáz Celsius fokos víz is szilárd (jég) állapotú.

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Egyéb anyagok is képesek hasonlóan viselkedni.

Amúgy valójában még kutatják, nincs egyértelmű bizonyíték.

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"Scientists aren't certain of just how solid Jupiter's core might be. While some theorize that the core is a hot molten ball of liquid, other research indicates that it could be a solid rock 14 to 18 times the mass of the Earth. The temperature at the core is estimated to be about 35,000 degrees Celsius (63,000 degrees Fahrenheit).

Discussions about Jupiter's core didn't even begin until the late 1990s, when gravitational measurements revealed that the center of the gas giant was anywhere from 12 to 45 times the mass of Earth. And just because it had a core in the past doesn't mean that it still will today – new evidence suggests that the gas giant's core may be melting."

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"It is still unclear if deeper down, Jupiter has a central core of solid material or if it may be a thick, super-hot and dense soup. It could be up to 90,032 degrees Fahrenheit (50,000 degrees Celsius) down there, made mostly of iron and silicate minerals (similar to quartz)."

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