Crystals that are kilometers in length! Nested realms of elemental purity. Epochal storms of world-altering consequence!
Who needs fantasy! The extremes of physics generate environments and material behaviors bizarre enough to rival any system of fantastical magic or metaphysics.
BBC News - Magnetic mysteries of Earth's Core
Yeah, yeah. I know. Fantasy is fun because you can apply the fantastic and sublimely bizarre to the human world. And that certainly works better for storytelling purposes than applying the kind of heat and pressure to people that generate the wonderfully odd realms that exist beneath our feet.
So maybe it's not so odd that science articles like this always leave me wanting to write fantasy that draws on the fantastic behaviors and strange realms that science articles and journals describe.