Io, hellish Io, is back in the news.
On Saturday, the exploration craft Juno will make the first of two close approaches to this fiery Jovian moon.
Those links will connect you to more information about both the mission and the moon, and here is Jason Perry with a “pregame show”:
Featured image: 2014 images of Io at various infrared wavelengths, by JPL/NASA/Imke de Pater and Katherine de Kleer/UC Berkeley/Gemini/Keck
Flight To Wonder 