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Pictures of Jupiter's moon Io tends to remind me of a giant pizza. However the “true color” image derived from photos taken by the Galileo spacecraft show the moon as predominantly yellow. [Image Credit: NASA, JPL, Galileo Project][APOD]

Io is the most volcanic body in the Solar System. “Io's volcanoes are so active that they are effectively turning the whole moon inside out. Some of Io's volcanic lava is so hot it glows in the dark.”

Io in True Color
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