Dust Disks Could Indicate Planets

A newly detected dust ring, just outside the orbit of Saturn could help astronomers have come up with a new strategy to shortlist star systems that might contain planets. Astronomers from the European Space Agency believe that this dusty ring is being maintained and replenished through collisions of objects in the solar system, like comets and asteroids. These distant dust clouds should be detectible, as well as swaths cleared out by planets.