Why do asteroids come in different colors and types?

Asteroids are not all the same because they are remnants of the early Solar System that formed under different conditions. Some are rich in carbon compounds and appear dark, while others are rocky or metallic and reflect more light. Collisions, space weathering, and heating also change their surfaces over time. That is why scientists classify them into types such as C-type, S-type, and M-type based on composition and reflectance.