I get e-newsletter from Engadget.com and today the University of Hawaii was in their e-newsletter. The Institute of Astronomy of the University of Hawaii & NASA Planetary Defense Coordination Office made the discovery of asteroid 2016 H03 that's following Earth and has been following Earth for over a century. Asteroid will continue to be near Earth for many more centuries too. This little asteroid poses no danger to Earth at all. image from https://www.engadget.com/2016/06/16/newly-discovered-asteroid-2016HO3-is-earths-cosmic-buddy/.