They're mostly found concentrated in the main asteroid belt, orbiting around the sun between the paths of Mars and Jupiter. Asteroids have orbits that bring them within 120 million miles of the sun.

Recent studies suggest that Ceres, the largest object in the asteroid belt between Mars and Jupiter ... Ertunet Crater's location and characteristics provide an ideal opportunity for further ...

It’s all about location and size ... Most are from the asteroid belt, a jumble of rocks between the orbits of Mars and Jupiter. They range in size from nearly 1000 kilometres across, to ...