volcanic crater named Tupan Patera on Jupiter's moon Io, as seen in this image from NASA's Galileo spacecraft, show varied results of lava interacting with sulphur-rich materials. The colourfulness of the image is only slightly enhanced from what the human eye would see on the scene. The red in the image includes a small amount of infrared energy. Tupan Patera, named after a Brazilian thunder god, was seen as an active hot spot in earlier Galileo observations. This image taken in October 2001. Tupan is clearly shown to be a volcanic depression, about 75 kilometres (47 miles) across, surrounded by cliffs about 900 meters (3000 feet) tall
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