Moons are natural objects that orbit planets. ... There are about 170 moons in our Solar System. Most of them are in orbit around the gas giants Jupiter and Saturn. Small planets tend to have few moons: Mars has two, Earth has one, while Venus and Mercury do not have any.

Why does Mercury have no moons?

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.

Does Mercury have 10 moons?

A perfect example of this is Earth, which is able to hold the moon in its orbit in the face of the overwhelming gravity of the sun, because it orbits within Earth's Hill sphere. Alas, this is why Mercury has no moons of its own.