"Duck! Here comes asteroid 2012 DA14, grazing close to where you live on February 15th!
No, this is not End of the World Part 2. No, it’s not a delayed reaction to the end of the Mayan Long Count calendar. In fact this asteroid is guaranteed to NOT hit us right now. Guaranteed!
What this is, in fact, is a reasonably sizeable rock passing reasonably close to the Earth.”
Learn more about the approaching asteroid from astronomer Ben Burress.