Uranus is a planet that rolls around on its side as it orbits the Sun. That's because it's tipped over, with an axial tilt of 97.8 degrees. That weird tilt gave the James Webb Space Telescope (JWST) a chance to probe the ionosphere using the Near Infrared Spectrometer (NIRSpec) instrument. An international team of astronomers used the data to map the vertical structure of that region and detect faint auroral displays. The team was led by PhD student Paola Tiranti of Northumbria University in England, and they mapped important characteristics of the upper ionosphere. That included the temperature and density of ions in that region, up to about 5,000 kilometers (3,108 miles) above the cloudtops of the planet. “This is the first time we’ve been able to see Uranus’s upper atmosphere in three dimensions,” said Tiranti.…