Protoplanets

Protoplanets are large bodies of matter in orbit around a young star that are in the process of forming into planets. They are typically composed of rock, dust, and gas, and can range in size from a few kilometers to several hundred kilometers in diameter. Protoplanets are formed from the accretion of smaller particles, such as dust and gas, that are present in the protoplanetary disk surrounding the young star. As these particles collide and stick together, they gradually grow in size and mass, eventually forming into larger bodies that can become protoplanets. Protoplanets play a crucial role in the formation of planets, as they are the building blocks from which planets are formed.
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