BIG BENU
NASA is closely watching the asteroid it fears could one day hit and pulverise Earth or pass close between us and the moon. In the year 2135. Beware of Billion-year-old Big Bennu’s orbit could be on course for the Earth, according to researchers. https://youtu.be/gtUgarROs08
How the University of Arizona chose asteroid Bennu for a visit http://tucson.com/news/local/how-university-of-arizona-chose-asteroid-b… via @tucsonstar