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Scientists Find Strongest Evidence Yet of a Hidden Ocean Beneath Jupiter’s Moon Callisto
Astronomers have uncovered new evidence that Jupiter’s moon Callisto likely harbors a massive underground ocean, potentially ...
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On this date: Galileo discovers three major moons of Jupiter
Initially believing they were distant stars, Galileo’s repeated observations over several nights and realized they were moons orbiting the gas giant. And thus, Io, Europa and Ganymede became ...
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Is Europa alive? A laser could detect biosignatures from space
Europa is the sixth largest satellite in our Solar System and the smallest of Jupiter’s four Galilean moons. Discovered by ...
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Old NASA mission reveals an unlikely world harbors an ocean
SEE ALSO: NASA spacecraft saw something incredible near Jupiter's Great Red Spot From left, moons Ganymede ... in 1610 by Italian Renaissance man Galileo Galilei, has earned a reputation as ...