Tvashtar's Plume

Tvashtar's PlumeThis image of Io was taken by the New Horizons spacecraft from a distance of 2.5 million kilometres away.  It shows the plume from the Tvashtar volcano, near Io's north pole, which extends to 290-kilometres from the satellite's surface.  New Horizons is currently going snap happy as closes in on Jupiter, on its way for the planned encounter with Pluto in 2015.  Click the thumbnail for the larger image and check out the alien volcano!

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