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Eruption on Io
Photo: Molten rock on Jupiter's moon Io
WALLPAPER
Newly erupted lava roils on the surface of Jupiter's moon Io in this false-color image taken on February 22, 2000, by NASA's Galileo spacecraft. The orange-and-yellow ribbon is a cooling lava flow more than 37 miles (60 kilometers) long.
Photograph courtesy NASA/JPL

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