The asteroids are very young and appear to be made from the same material.

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While some asteroids may be relatively young, others have been estimated to be billions of years old. Additionally, asteroids are not uniform in composition and can vary widely in their mineral content. The asteroids are believed to have formed around the same time as the Solar System, making them very old. However, they are not all made from the same material as they come in different sizes and compositions.

The Asteroids Are Very Young and Appear to Be Made