Comment Re:It's going to get us! (Score 1) 188
Actually, it could be a threat according to this theory:
http://www.space.com/scienceastronomy/nemesis-comets-earth-am-100311.html
It basically says that since extinction events on earth occur every 26 Million years, the orbit of an as-yet-unknown brown dwarf may be causing impacts on earth that lead to these extinction events.