This image shows hotspots of Io.
Click on image for full size
NASA
Hotspots of Io
Hotspots help scientists know where the volcanoes & geysers of Io are actually located.
This picture shows a map of the hotspots of Io at the top, and the same image of Io taken with a camera, at the bottom. The black and white picture of Io shows what you can see with the naked eye.
Among these hotspots are:
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