Interstellar comet 3I/ATLAS is currently leaving our solar system after a close encounter with the Sun in October 2025, traveling past the orbit of Jupiter. This comet, measuring over a kilometer in width, is composed of dust and ices from its original planetary system. Researchers from Caltech utilized the James Webb Space Telescope (JWST) to analyze the comet's mid-infrared signatures, revealing its unique chemical composition. Notably, as 3I/ATLAS warmed while approaching the Sun, it began to emit methane, indicating that it had shed its ancient outer surface and exposed its inner icy layers. This finding is significant as it provides a glimpse into the conditions of its formation. The research is documented in a paper published in The Astrophysical Journal Letters, with further observations planned for spring as the comet continues to move away from the Sun. The study includes contributions from several institutions, highlighting the collaborative effort to understand this fascinating interstellar object.