It isn't quite clear what you mean with "come".Asteroids normally orbit the Sun - just as the planets.
Asteroids MAY come from other solar systems; so far we know of ONE such case, but it is likely that there are more.
they are just called astroids.
astroids and atomic rocks
Astroids are huge rocks but all the astroids don't look the same.
in canada
yes they are.
Saturn.
i do not know... Peace out
No, some of them are a few feet across while others can be many miles across.
Asteroids are believed to have come from celestial bodies such as small moons that have broken into pieces. These and other space debris have been captured by gravity fields within the solar system, creating the asteroids.
holes that astroids hit
Metorites and astroids.
No, none of the planets have asteroids.