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Ganymede

Astronomy, Guide to Space

Jupiter’s Moon Ganymede

15 Oct , 2015 by Matt Williams

In 1610, Galileo Galilei looked up at the night sky through a telescope of his own design. Spotting Jupiter, he noted the presence of several “luminous objects” surrounding it, which he initially took for stars. In time, he would notice that these “stars” were orbiting the planet, and realized that they were in fact Jupiter’s […]

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