The James Webb Space Telescope has produced the first 3D map of Uranus’s upper atmosphere, tracking temperatures and ion densities up to 5,000 kilometers above its clouds. The observations reveal bright auroras shaped by the planet’s tilted magnetic field and confirm that Uranus is still slowly cooling over long timescales.The James Webb Space Telescope has produced the first 3D map of Uranus’s upper atmosphere, tracking temperatures and ion densities up to 5,000 kilometers above its clouds. The observations reveal bright auroras shaped by the planet’s tilted magnetic field and confirm that Uranus is still slowly cooling over long timescales.
