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The Planetary Society Blog

By Emily Lakdawalla


Another amazing Io image from New Horizons

Mar. 13, 2007 | 11:26 PDT | 18:26 UTC
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The Tvashtar eruption continues to amaze. All this time between Galileo and New Horizons, Io's volcanoes have probably continually produced spectacular eruptions like these. It boggles the mind, all the activity that goes on in space where no human can see it. New Horizons has now passed Io by; it'll go on erupting, not caring whether anybody's watching or not.

Glowing Tvashtar
Click to enlarge >
Glowing Tvashtar
New Horizons captured this view of a crescent Io on March 1, 2007, 19 hours after its losest approach to Jupiter. The dayside is deliberately overexposed to bring out faint details in the plumes and on the moon's night side. The plume erupting 330 kilometers from the top of the globe is from the volcano Tvashtar. The plume is lit both by sunlight and by Jupitershine. Beneath the plume is the incandescent glow of hot lava. Credit: NASA / JHUAPL / SwRI

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