The unique animation denotes the location of nightside aurorae on Mars. These aurorae, observed to date only by SPICAM on Mars Express, occur over areas on Mars characterised by a strong crustal magnetic field first discovered five years ago and subsequently mapped. The aurorae are illustrated in blue, and the magnetic field strength is illustrated by the height of the blue features. The video is referenced by Jean Tate.
Obsevations of Earth, Mars, Jupiter and Saturn aurorae have been made.
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