LYCOS RETRIEVER 
Io: Volcano
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Io's volcanoes seem to be part of the system that distributes the sulfuric snow across the planet. The edges of some lava fields have a bluish haze, where the heat would change the solid snow back into a gas.
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The NASA Infrared Telescope Facility (IRTF), on Mauna Kea, Hawaii, collects infrared images of Io when the satellite is observable. This data set is in support of images collected during the Galileo mission. The images can detect eruptions and, under the right conditions, the active volcano. This telescope provides better time coverage and time resolution of volcanic activity on Io compared to Galileo observations.
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Scientists think that Jupiter is powering the volcanoes by squishing Io a little everytime it goes around Jupiter. Io's inside heats up each time Io gets squeezed. The heat builds up until the inside of Io melts. The volcanoes help Io get rid of some of that heat.
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