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.

  • jaybone@lemmy.zip
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    5 days ago

    So what causes this? The article doesn’t really say. Even though other gas giants do this too. What’s the theory on this?

    • toynbee@lemmy.world
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      4 days ago

      The innuendo was kind of fun for a few comments, but thank you for finally asking the question that was the reason I opened this thread.

    • Sundray@lemmus.orgOP
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      5 days ago

      They don’t seem to have a working theory yet, they just noticed the historical temps are higher than expected. Exited to see what more research reveals!

    • gandalf_der_12te@discuss.tchncs.de
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      4 days ago

      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
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        4 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.