Now We Know: ‘Rock-solid’ case: Asteroid killed the Dinosaurs
Scientists say the debate over cause of ancient catastrophe is settled By Leonard David Space Insider columnist Space.com updated 3:38 p.m. ET, Thurs., March. 4, 2010 THE WOODLANDS, Texas - Scientists have debated for two decades whether a giant space rock wiped out the dinosaurs or if some other... Sign in to see full entry.