If the story makes you nervous, consider what a grace and blessing it is that it was this tiny pebble that struck earth and not the asteroid that will by at roughly the distance of the moon a little before noon PST today. That impact would have probably led to mass extinctions beginning with organisms at the top of the food chain–like us.
One sort of person will be asking what this has to do with the asteroid that will be passing the earth today (my bet was “related” though the news reports are saying otherwise, so it looks like I’m wrong). Another sort of person will be asking what this has to do with the resignation of Pope Benedict and the supposed prophecies of St. Malachy and Medjugore. My bet is “unrelated”, particularly since the prophecy of St. Malachy is a forgery and Medjugorje is a complete fraud.