Jupiter’s moons are warmer than they should be, but why?

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Mike Wehner

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  • New research shows that Jupiter's moons may be keeping each other warm thanks to the effects of gravity.
  • The tidal forces each moon applies to the others are keeping them warmer than they would otherwise be.
  • Jupiter's moon Europa has a subsurface ocean that may hold life.

Jupiter is well known for being the might, gassy, "king" of the planets. It's huge, and it has a whole bunch of moons orbiting it as well. In fact, the gas giant has almost 80 worlds orbiting it, ranging from small to massive. The weird thing about them is that they appear to be quite a bit warmer than they really should be, but why?

New research published in Geophysical Research Letters suggests that the moons themselves are responsible for their own warming, or at least they're responsible for warming each other. It might sound odd, but when you consider the effects of gravity, it actually makes perfect sense.

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Jupiter’s moons are warmer than they should be, but why? originally appeared on BGR.com on Fri, 11 Sep 2020 at 19:23:47 EDT. Please see our terms for use of feeds.

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