JWST Data Suggests Neptune's Inner Moons Formed from Ancient Collision Debris

The James Webb Space Telescope (JWST) has provided evidence suggesting Neptune's inner moons, Larissa and Galatea, along with its rings, are remnants of a past cosmic collision. Researchers detected clay-like minerals, typically formed with liquid water, on these moons despite no visible water ice. This implies the material originated from larger icy moons shattered during Triton's capture by Neptune, offering new insights into the planet's history.