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

submitted 5 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 1 points 4 days ago (1 children)

it's not chemical, that much i can tell you. there was a study done in 1800 iirc where they contemplated what gives the sun its enormous power and they figured out that if the sun was a solid ball of coal burning slowly, it wouldn't last longer than 200 years iirc, at the enormous rate of power it emits. it's a nuclear process

these nuclear processes can be very long-running. uranium takes billions of years to decay. it's probable that a lot of planets have uranium in their interior and that heats up the planet from the inside.

[–] ryannathans@aussie.zone 1 points 4 days ago

Uranus isn't the sun though and the power output is many orders of magnitude lower