All the scientists are quite confident that asteroid 2012 DA14 is going to miss us when it comes by at 2:25 Eastern time. It is not all going to come burning through our atmosphere with the force of umpty many hydrogen bombs, burying whole taxa in iridium and ash, reducing human civilization to a concentrated smear of silicon and copper for far-future sentient descendants of lobsters to mull over as they drill down into old rock, seeking whatever mineral resources the industries of the lobster-people will depend on. Definitely not. It is not even big enough accomplish that, really, even if it did hit us. The appointed minute will come and 2012 DA14 will almost certainly swing harmlessly past our planet, right under our communications satellites, and back out into the interplanetary void till its next pass.