This is an image of Callisto.
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NASA

Callisto

Callisto was first discovered by Galileo in 1610. It is the 2nd largest moon in the solar system, and is larger than the Earth's moon. It is about as big as the distance across the United States.

Callisto is named after one of Jupiter's many girlfriends from Greek mythology.

Last modified September 19, 2003 by Jennifer Bergman.

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