Ice giants

Webb has provided the first detailed 3D image of Uranus' upper atmosphere, revealing auroras, heat peaks thousands of kilometers high, and the strong influence of its tilted magnetic field. The data also confirms that the planet has been cooling for decades. Credit: ESA/Webb, NASA, CSA, STScI, P. Tiranti, H. Melin, M. Zamani (ESA/Webb)

James Webb Space Telescope maps Uranus' upper atmosphere in 3D for the first time

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New research reveals the vertical structure of Uranus' ionosphere, discovers auroras influenced by the planet's unusual tilted magnetic field, and confirms that its upper atmosphere has been cooling since the 1990s.
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