NASA: 'The world is not about to end. No, really'

We're getting so many reassurances from NASA these days that the world is not about to be destroyed by some space-borne phenomenon that I'm starting to wonder if there's something the space agency isn't telling us.<img src="http://feeds.feedburner.com/~r/cnet/tcoc/~4/7ePB1q7-Puk" height="1" width="1"/> [More]