A small asteroid has been found circling Earthas the two objects orbit the sun together. Scientists say it looks like the asteroid -- called 2016 HO3 -- has been out there for about 50 years and isn't going away anytime soon. "Our calculations indicate 2016 HO3 has been a stable quasi-satellite of Earth for almost a century, and it will continue to follow this pattern as Earth's companion for centuries to come," said Paul Chodas, manager of NASA's Center for Near-Earth Object Studies. Read more http://www.cnn.com/2016/06/16/us/nasa-asteroid-circles-earth/index.html
