Juno Shares Stunning new Images of Jupiter's Volcanic Moon Io

With its primary mission over, NASA's Juno is taking bold flights closer to Jupiter, making flybys of its moons. On July 30th, Juno came within 22,000 km of the surface of Io, Jupiter's closest large moon, known for being the most volcanically active world in the Solar System. The stunning images showed a world that's awash in volcanoes and lava flows. When Voyager flew past in 1979, it discovered the volcano Prometheus, and new images from Juno show that Io's "Old Faithful" is still erupting decades later.

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