1)started as swirling could of gas and dust called a Nebula
2)Gravity pulled most the matter towards the center and the cloud spun faster.
3)Fusion starts..... a star is born.
4)Heat from the sun gets rid of gas around the forming planets.
5)Gravity and rotation cause the protoplanets to become denser.
6)Matter circling the planets become moons. Then the left over matter becomes asteroids, meters, and more.
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Venus
Six of the eight planets in the solar system have at least one moon. That's 6/8 or 3/4 of the planets.
There are 8 planets in our solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
Saturn has six major moons: Titan, Rhea, Iapetus, Dione, Tethys, and Mimas.
The biggest planet outside our solar system is known as HD 100546 b. It is located about 335 light-years away from Earth and is estimated to be at least six times more massive than Jupiter.