A new technique for finding potentially hazardous asteroids before they find us has chalked up its first success. In this case, the asteroid isn’t expected to threaten Earth anytime in the foreseeable future. But the fact that the technique — which uses a new computer algorithm called HelioLinc3D — actually works comes as a confidence boost as astronomers get set to step up the asteroid hunt with the Vera C. Rubin Observatory in Chile. The University of Washington’s DiRAC Institute will play a l