A team of scientists has produced the first complete global geologic map of the Jovian satellite. Geologic Map of Io (USGS / ASU) The map, published by the U. S. Geological Survey, depicts the characteristics and relative ages of some of the most geologically unique and active volcanoes and lava flows ever documented in the Solar System. “One of the reasons for making this map was to create a tool for continuing scientific studies of Io, and...