Jupiter's two strange auroras pulse to their own X-ray beat

Scientists have detected a powerful X-ray aurora hotspot near Jupiter's south pole and it does not behave how they expected.

Juno Listens to Jupiter's Auroras

The data was collected when the spacecraft made its first orbital pass of the gas giant on Aug 27, 2016, with all spacecraft instruments turned on. The frequency range of these signals is from 7 to 140 kilohertz.