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At least 178
We don't know if it has any moons. We currently do not have the technology to detect moons orbiting planets outside of our solar system.
There are about 100 billion stars in the Milky Way Galaxy. We only know of moons in the solar system - 169 of them.
They are examples of moons. Pressumably, many planets around other stars will also have moons, although as far as I know, this hasn't been confirmed yet.
Mercury and Venus do not have moons.
I t has 2 moons!
We do not know how many stars there are, we cannot possibly know how many moons there may be.
169 moons.
There are 180 moons in our solar system.
About 120 planets are in our solar system.
The answer is there are two planets which have no moons. Venus and Mercury
Saturn has around 60 identified moons, but we don't know for sure if there are more to yet be discovered. Defining a moon is also tricky, since there are large boulders in the ring system. Are these moons? There is no clear definition of when a moon is a moon, or just a large rock.