Shown here is a map of the MAVEN Imaging Ultraviolet Spectrograph’s auroral detections in December 2014 overlaid on Mars’ surface. The map shows that the aurora was widespread in the northern hemisphere, not tied to any geographic location. The aurora was detected in all observations during a 5-day period, though no data were taken in the southern hemisphere and some regions in the northern hemisphere were missed. (Courtesy CU/LASP)
