Last updated on December 11, 2013 at 9:53 EST Jupiter and Io 207
of 3714  Jupiter and Io  April 5, 2013 This is a montage of New
Horizons images of Jupiter and its volcanic moon Io, taken
during the spacecraft's Jupiter flyby in early 2007. The image
shows a major eruption in progress on Io's night side, at the
northern volcano Tvashtar. Incandescent lava glows red beneath a
330-kilometer (205-mile-high) volcanic plume, whose uppermost
portions are illuminated by sunlight. The plume appears blue due
to scattering of light by small particles in the plume.   Read
the article: Why Are Io’s Volcanoes In The Wrong Place?