Io
This is an old revision of this page, as edited by TerryH (talk | contribs) at 01:34, February 10, 2008. It may differ significantly from current revision.
Io, named for the the daughter of Inachus in Greek mythology, is a moon of Jupiter. It is the most volcanically active object in the solar system. It has a diameter of about 2,263 miles.
References
John Gribbin, Companion to the Cosmos (Little, Brown & Company, 1996)