What's Going On Inside Io, Jupiter's Volcanic Moon? (Space)

... something appears to grant geologic life to small orbs throughout the solar system long after they should have geologically perished.

Io is the most flamboyant member of this puzzling club - a burnt-orange, crimson and tawny Jackson Pollock painting. The discovery of its over-spilling cauldrons of lava is one of the most famous tales in planetary science, as they were predicted to exist before they were discovered.

https://www.quantamagazine.org/whats-going-on-inside-io-jupiters-volcanic-moon-20250425/