3 Moon Shadows Appear Simultaneously on Jupiter

January 24, 2015 7:10 PM

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There are 67 confirmed moons on Jupiter, such as the 4 Galilean moons. Io, Europa, Ganymede and Callisto contain enough mass such that if they were orbiting the sun, they would be considered dwarf planets.(Photo : NASA/JPL) Jupiter was the star on Friday...

There are 67 confirmed moons on Jupiter, such as the 4 Galilean moons. Io, Europa, Ganymede and Callisto contain enough mass such that if they were orbiting the sun, they would be considered dwarf planets.(Photo : NASA/JPL)

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