Thread: Seriousness What Heats the Earth's Core?
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Old 10-06-2010, 02:09 PM   #48
kennyc
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Well given that the heat is being generated mostly by radioactivity I think it's going to be a long long time.

In fact if I remember what I was reading correctly it will be longer than the time when the sun expands and engulfs the Earth. eeek!
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