Any moon is held in orbit by gravity, just as the planets are held in orbit around the sun by gravity.
Mass and gravity
The planets are held in orbit by the gravity of the Sun, and also because that is what happens when the force of inertia and gravity are combined.
Isaac Newton
The gas planets are much more massive than the terrestrial planets and therefore have stronger gravity. It is believed that as they formed many of their moons formed around them much like the planets formed around the sun. Other moons are likely captured asteroids and comets.
Any moon is held in orbit by gravity, just as the planets are held in orbit around the sun by gravity.
by gravity
The planets are satellites of the sun. The moons are satellites of the planets. The moons revolve around the planets captured by their gravity, while the planets revolve around the sun captured by its gravity and the sun.
If there was no gravity, the Sun and and the planets would never have formed.
gravity
Not all of the planets are held by gravity.
the gravitational pull of the gravity of the planet so in other words bigger planets more gravity, smaller planet less gravity. usually bigger planets have more moons
There is gravity. There is gravity on all planets, moons, and stars.
Mass and gravity
the planets do not orbit the moon but the moon orbits the planets because of gravity and inertia
Asteroids orbit the sun. Moons orbit planets and planets orbit the sun. So you could say the moons orbit the sun. However, moons are kept in their orbits by the gravity of their planet and planets are kept in orbit by the gravity of the sun. So in that sense, moons do not orbit the sun.
Most people don't think this but planets are actually held in orbit by gravity. With out gravity the planets will fall down.