Webb has found crystalline water ice in a debris disk around a young, Sun-like star called HD 181327. Based on its presence in our own solar system, scientists have expected to see it in other star systems – but haven’t had sensitive enough instruments to provide definitive proof until now.
Image Credit: NASA, ESA, CSA, Ralf Crawford (STScI)
https://www.nasa.gov/image-detail/54521739963-b58dc96fbb-o/