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During the solar system's chaotic era, Jupiter may have helped form Earth's moon
based on when Jupiter could have accrued its trojan asteroids at its L4 and L5 Lagrange points. "People seem to agree that the Nice Model-like instability probably happened less than 100 million ...
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On this date: Galileo discovers three major moons of Jupiter
On this date, Jan. 7, 1610, astronomer Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant stars, Galileo’s repeated ...