Are secret oceans hiding on the moons of Uranus?

Quote from the article " As a moon orbits a planet, that planet's magnetic field tugs at the moon, keeping it in its orbit "

I think you'll find that it's the planet's gravitational field that tugs at the moon keeping it in its orbit. ;)

Any magnetic interaction between a planet and its moon is a far weaker effect that over the course of millions of years might cause a small change in the orbital distance of the moon from the planet.:)
 

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