Question

why some planets have more than 1 moon??

Answer 1

for balancing them in the universe
our moon is the natural satellite of our earth
which is made by the 1/4portion of earth

Answer 2

Yo!
Here is your answer,dude,

There are two kinds of planets in the solar system: the Terrestrial planets (Mercury, Venus, Earth, Mars), and the Jovian planets (Jupiter, Saturn, Uranus, Neptune). While the Jovian planets have a total observed number of moons of close to 90, the Terrestrial planets have only 3 (the Moon, and two small moons around Mars). This huge difference is linked to the formation of the solar system.

Astronomers think that our moon was created billions of years ago when something really large collided with Earth, knocking rocks and debris into orbit. The orbiting stuff eventually came together to form the moon. When it comes to larger planets like Jupiter, it’s possible that when the planet was still young its atmosphere stretched out far into surrounding space. The gas could have trapped passing objects and drawn them into Jupiter’s orbit, creating small, irregular moons.

Hope that this is the answer you want!