What is the difference between an asteroid and a meteoroid? Asteroids are much larger than meteoroids. Asteroids are made up of rock while meteoroids are made up of ice. Asteroids are much smaller than meteoroids. Asteroids are made up of ice while meteoroids are made up of rock.
The correct distinction is: Asteroids are much larger than meteoroids, and asteroids are typically made up of rock, while meteoroids are composed of rock or metal and are significantly smaller in size compared to asteroids.
