"What makes the event even more extraordinary is that it did not involve a single volcano, but multiple active sources." ...

The moon greets Jupiter two days ahead of its full moon phase on Feb. 1.

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

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.

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.

Mercury, Venus, and Saturn put on an early-evening display in the west, while Jupiter dominates the rest of the night.

The Italian scientist Galileo Galilei, when hearing about the invention of the telescope in 1608, decided to make his own ...

Sky This Week is brought to you in part by Celestron. Friday, January 30The Moon passes 4° north of Jupiter this evening at 9 P.M. EST. The pair is visible most of the night in the central region of ...

February’s night skies hold a certain celestial splendor that only enthusiastic and vigorous skywatchers have the fortitude ...

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.

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