SciTechDailyPlanetary Defense Researchers Simulate Earth-Bound Asteroid DeflectionApr 4, 2020bookmark_bordersharemore_vert
Space.comHuge asteroid 1998 OR2 will zip harmlessly by Earth April 29. See the latest telescope photos.Apr 4, 2020Hanneke WeiteringBy Hanneke Weiteringbookmark_bordersharemore_vert