Two Meteorites Discovered In Antarctica May Be From The Same Supernova

There's nothing more fascinating or TV special-worthy than twins separated at birth. Whether they're reunited at 15 or 50 it's safe to say that there'll be some eerily similar food preferences and a whole lot of crying. But what about two chemically identical grains of silica that haven't seen each other for more than… » 4/28/13 1:00pm 4/28/13 1:00pm