They are from space by definition!
They are simply very large "boulders", and most in the Solar System orbit the Sun in a belt bewteen Mars and Jupiter.
An asteroid
in space
An asteroid
A Martian asteroid is a rock in space that originally came from Mars.
Zero.Zero.Zero.Zero.
An Asteroid got its color from the dust that was left from collisions with other objects in space.
go to the middle of the asteroid belt and it's on a asteroid go down to it.
momentum
A comet or asteroid.
Ceres
anothor asteroid belt
Asteroids travel through space.