New images of Jupiter moon Io show massive volcanoes, a scarred landscape and lava flows. Jupiter has a total of 92 moons, and Io is slightly larger than Earth’s moon.

The simultaneous eruption of multiple volcanoes suggests a vast, interconnected network of magma exists beneath the surface, powered by the intense gravitational pull of Jupiter.

As part of Juno’s extended mission, the spacecraft is making close encounters of Jupiter’s large Galilean moons after having ...

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The volcanic hot spot is larger than Lake Superior, spewing eruptions six times the total energy of all of the world's power plants.

NASA's Juno mission has detected the most powerful volcanic eruption ever on Jupiter's moon, Io, revealing an interconnected magma reservoir system beneath its surface.

Baby stars, teenage planets, and disappearing icebergs are all featured this week. Plus, a look back at a New Horizons image of Jupiter and Io, and a strange, elongated cloud on Mars.