[ShadowAce]

The temperature at the centre of the Earth, however, is unknown, but it is thought to be roughly as hot as the surface of the sun.

This doesn't make any sense to me. I'm not a geologist, but if it were that hot, then wouldn't it show that the earth would NOT burn up if it touched the surface of the sun? If it is already enduring such temps, then the sun shouldn't pose a big problem.

[hellbender]

The earth would not “burn up” if it touched the surface of the sun; it would vaporize. The earth is not destroyed by the high temperature in the core because there are thousands of miles of cooler material between the surface and the core, and because the extreme pressure in the core prevents vaporization.