Asteroids
- Asteroids are rocks which revolve around the sun. They are usually too small to be considered as a planet since they can be as small as 2 meters but they can be as big as 940 kilometers across.
- Asteroids are also known as planetoids or minor planets. They are often irregularly shaped but some tend to be almost spherically-shaped. They have pitted surfaces and are covered in dust.
- They can be dangerous because many have hit Earth in the past and it's likely that it can happen again.
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