Planet with the Most Natural Satellites?


Earth, Mars, Jupiter, Saturn, Uranus and Neptune all have natural satellites or moons. The largest natural satellite, Jupiter's Ganymede, is 3,268 mi (5,262 km) in diameter, and it and Saturn's Titan are both larger than the planet Mercury. Jupiter is believed to have the most number of natural satellites.
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Planets that have their own natural satellites are Earth, Jupiter, Saturn, Uranus, Neptune and Mars. Earth's moon is one of the larger natural satellites with a diameter of 2, 160 miles. It is the only moon close enough to us that details of its surface can be seen through a telescope from Earth. The largest moon is Ganymede with a diameter of 3, 280 miles, even larger than either of the planets Mercury and Pluto. Saturn's moon Titan is the second largest in the Solar System with a diameter of 3, 200 miles, half again as large as Earth's Moon.