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D022493-jupiter-auroras-spectrograph.jpg

Image: Spectrograph image of Jupiter’s massive auroras
The SwRI-led UVS spectrograph images Jupiter’s massive auroras. Collected during Juno’s third orbit around the gas giant, this false-color image is inset with an image of Earth’s south pole aurora, approximately to scale, collected September 11, 2005. The streaky colors away from the Jovian auroral region are associated with penetrating electrons.