Most people don't think this but planets
are actually held in orbit by gravity. With out gravity
the planets will fall down.
Planets orbit stars.
Planets
They are held in place by the gravitational force of the sun.
All planets orbit around a sun.
Newton's model, which is still current for most purposes (with slight modifications by Einstein) has planets held in their orbits by gravitational attraction between Sun and planet.
Any moon is held in orbit by gravity, just as the planets are held in orbit around the sun by 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.
Planets orbit stars.
No. Planets orbit suns, while moons orbit planets. Planets do not orbit planets.
The solar system's planets, planetesimals, asteroids, and comets are held in orbit by the force of gravity, the mutual attraction between these objects and the Sun.
The Sun has no moons. Moons orbit Planets > Planets orbit the Sun.
The planets do not orbit the Earth, they orbit the sun.
Moons orbit planets. Planets orbit stars. Some stars orbit other stars, or orbit their mutual center of gravity. Stars orbit the center of the galaxy. Galaxies may orbit the center of the "galactic group".
Gravity holds the planets in their orbit
Yes all planets have a orbit
Planets
yes, planets do orbit a star