86 mile high volcano erruption on Io

Io

Io (Jupiter I) is the innermost of the four Galilean moons of the planet Jupiter. It is the fourth-largest moon, has the highest density of all the moons, and has the least amount of relative water of any known object in the Solar System. It was discovered in 1610 and was named after the mythological character Io, a priestess of Hera who became one of Zeus's lovers.

With over 400 active volcanoes, Io is the most geologically active object in the Solar System.[8][9] This extreme geologic activity is the result of tidal heating from friction generated within Io's interior as it is pulled between Jupiter and the other Galilean satellites—Europa, Ganymede and Callisto. Several volcanoes produce plumes of sulfur and sulfur dioxide that climb as high as 500 km (300 mi) above the surface. Io's surface is also dotted with more than 100 mountains that have been uplifted by extensive compression at the base of Io's silicate crust. Some of these peaks are taller than Mount Everest.[10] Unlike most satellites in the outer Solar System, which are mostly composed of water ice, Io is primarily composed of silicate rock surrounding a molten iron or iron-sulfide core. Most of Io's surface is composed of extensive plains coated with sulfur and sulfur-dioxide frost.




Size comparison to the Earth and Moon





Eruption on Io from the New Horizons probe

I hope their dinosaurs make it through

quote:

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I wish we would send landers to the four Galilean satellites.

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Io would be a bad idea. It is so active the surface changes each time we photograph it. As for the other 3, absolutely.

Looks like my lab work up.....

Io is trashy.

Well the earth is flat and NASA is lying

Is lo just mad because it does not get a capital letter?

whoa that's neat