X-Shaped Faux-Comet Likely Related to Prehistoric Dinosaur-Smasher

P/2010 A2, the mysterious object streaking through the solar system, appears to belong to the same family of asteroids that sent a huge rock our way 65 million years ago. Maybe it's trying to see whether Tyrannosaurs have re-evolved? » 2/07/10 3:00pm 2/07/10 3:00pm