James Webb telescope spots giant auroras rolling through Uranus' atmosphere

Scientists used the James Webb Space Telescope to observe Uranus for 15 hours, creating the first detailed three-dimensional map of the ice giant's mysterious upper atmosphere and revealing giant auroras rolling through its magnetic field. The observations showed that ion temperature and density peak at different altitudes due to Uranus' complex magnetic geometry, while confirming the planet's atmosphere has been steadily cooling since the 1990s.