The Milky Way solar system includes nine planets, ranging from small planets with extreme temperatures to large planets with below zero temperatures. Some planets have extraordinary rings while others have countless moons orbiting them, however, rings or no rings, all planets are formed in the same way. All planets begin formation in the same way as stars, in a nebulae. As of current understanding, motions within the cloud causes it to flatten into a disk, that continues to get thinner as it spins. In this stage, the disk is known as a protoplanetary disk. While the disk spins, debris begins to spin in the same direction and stick together. Nebulae further from the sun may contain ice, resulting in icy planets. As the planets collects material around it, a path is cleared around its star.
Quiz
1) How many planets are in the Milky Way?
Quiz
1) How many planets are in the Milky Way?
2) Where does planet formation begin?
3) Motions in the cloud cause it to
4) The disk is called a
5) As the disk spins,
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