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2017-12-27. Scientists Discover Stromboli-Like Eruption on Volcanic Moon.

posted Jan 16, 2018, 2:16 PM by Alan Gould
By JoAnna Wendel, Eos/AGU. For GSS Energy Flow chapter 2. Excerpt: Jupiter’s moon Io is known for its lava fountains and roiling lava lakes, but scientists had never seen such an intense eruption in their data until now. ...But wait, you ask, didn’t Galileo plunge into Jupiter’s atmosphere at the end of its mission, way back in 2003? Well, yes. But the orbiter, at that point, had collected so much data about the Jovian system and its Galilean moons (Ganymede, Io, Callisto, and Europa) that scientists still haven’t waded through it all, even 14 years later. ...Io’s surface is constantly gushing lava—every million years or so, the entire moon’s surface completely regenerates. From towering lava fountains that can reach 400 kilometers high to violently bubbling lava lakes that burst through freshly cooled crust, these oozing lava fields can stretch many thousands of square kilometers. On this 3,600-kilometer-wide moon, eruptions take place “on a scale that simply isn’t seen on Earth today but was once common in Earth’s past,” Davies said. The scale, frequency, and intensity of Io’s eruptions make it a perfect analogue of early Earth, he continued, back when our blue planet was just a barren hellscape of lava. Video of the eruption: https://eos.org/wp-content/uploads/2017/12/IoGIF.gif?x35494 .... https://eos.org/articles/scientists-discover-stromboli-like-eruption-on-volcanic-moon