Multimedia Gallery
Jupiter and three of its moons
This image shows Jupiter in the center and three of its moons. The picture was taken with an Apple iPhone 6 while looking through a Celestron C-8 orange tube 1976 telescope.
Jupiter has 62 known moons. The most recent moons were discovered in 2003. The planet's four largest moons are Io (eye-OH), Europa (yur-O-puh), Ganymede (GAN-i-meed) and Callisto (kuh-LIS-toe). These four moons are called the Galilean satellites because Italian astronomer Galileo Galilei discovered these moons in 1610.
Credit: Karen Pearce
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