We on Earth have just one moon, but some planets have dozens of them. Others don’t have any. Which planets have moons, and which don’t? Let’s go in order from the Sun. Mercury and Venus Up first are Mercury and Venus. Neither of them has a moon. Because Mercury is so close to the Sun and its gravity, it wouldn’t be able to hold on to its own moon. Any moon would most likely crash into Mercury or maybe go into orbit around the Sun and eventually get pulled into it. Mars Mars has two moons. Their names are Phobos and Deimos. Don’t you wish our moon had a cool name like that? Jupiter Next are the giant outer planets. They have lots of moons. Jupiter, for instance, has 79 known moons! The most well-known of Jupiter's moons are Io (pronounced eye-oh), Europa, and Callisto. Jupiter also has the biggest moon in our solar system, Ganymede. These moons are so big you can see them with just a pair of binoculars. Saturn Saturn has 53 moons that have been named. Saturn also has 29 moons awaiting confirmation. They’re unconfirmed because we’re waiting to get more information about them. If all of these moons get confirmed, Saturn will have 82 moons. And that’s not counting Saturn’s beautiful rings. Saturn’s moons have great names like Mimas, Enceladus, and Tethys. One of these moons, named Titan, even has its own atmosphere, which is very unusual for a moon. Uranus and Neptune Uranus has 27 moons that we know of. Some of them are half made of ice. Lastly, Neptune has 14 named moons. One of Neptune's moons, Triton, is as big as dwarf planet Pluto.

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Saturn has overtaken Jupiter as the planet with the most moons, according to US researchers. A team discovered a haul of 20 new moons orbiting the ringed planet, bringing its total to 82; Jupiter, by contrast, has 79 natural satellites.

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We on Earth have just one moon, but some planets have dozens of them. Others don’t have any. Which planets have moons, and which don’t? Let’s go in order from the Sun. Mercury and Venus Up first are Mercury and Venus. Neither...

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However, some planets have more than one moon. Jupiter has the most moons of any planet in the solar system. Jupiter has 79 moons. Of these, 72 have confirmed orbits and 52 have been named.

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