A new study suggests that Nereid, one of Neptune's moons, may be an original satellite rather than a captured object from the Kuiper Belt, as previously believed. Researchers from the California Institute of Technology conducted this study using data from NASA's James Webb Space Telescope (JWST) and simulations of Neptune's early system. The findings indicate that Nereid has distinct characteristics that set it apart from known Kuiper Belt objects (KBOs), including being richer in water ice and lacking volatile organics. The study's lead author, Matthew Belyakov, emphasized that Nereid's irregular orbit and intact nature make it a unique case among moons. The simulations revealed that the gravitational capture of Triton, Neptune's largest moon, likely influenced Nereid's current orbit. This research not only sheds light on Nereid's origins but also redefines our understanding of the Neptune system's chaotic history. The study represents a significant advancement in planetary science, providing insights that have been sought since Nereid's discovery in 1949.