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How has the inside of the #Earth stayed as hot as the Sun's surface for billions of years? https://theconversation.com/how-has-the-inside-of-the-earth-stayed-as-hot-as-the-suns-surface-for-billions-of-years-193277 #Science
Source: https://twitter.com/ConversationUS/status/1617561370756620288?s=20
