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Confirmed: Uranus Really Is Hotter Than It Has Any Right to Be (www.sciencealert.com)

submitted 3 days ago by sundray@lemmus.org to c/nottheonion@lemmy.world

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cross-posted from: https://lemmy.ca/post/48332762

A new analysis of decades' worth of observations has revealed that Uranus does indeed emit more heat than it receives from the rays of the Sun.

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[–] gandalf_der_12te@discuss.tchncs.de 4 points 3 days ago (1 children)

i assume nuclear decay processes in its interior

i.e. uranium decays into lead and that process releases some heat continuously for a very long time

it also happens on earth, though i don't have any exact number for it. AFAIK, it's what keeps the earth's interior warm. otherwise it would have cooled down a lot more since the earth formed a few billion years ago.

[–] jaybone@lemmy.zip 2 points 2 days ago

That all makes sense.

But if the inner planets do this too, then why is it such a mystery? Sounds like every planet does this then.