The energy generated by tidal heating has to escape so it fissures its way through the ice and blasts out in what the space nerds call a geyser.

This super nerd had a whole plan to build a nuclear probe to send there. His design was when it landed it would superheat and bore through the 10 km thick ice shell into the ocean below. Some people think there could be life in the ocean, but seems unlikely.

That dude was fucking insane for coming up with that plan, I wish nasa would’ve funded it.