"Sixty-six million years ago, all dinosaurs (except for birds) were wiped from the face of the Earth..." writes Gizmodo. "What's indisputable about this pivotal moment in Earth's history is that a 6.2 to 9.3-mile-wide (10 to 15-kilometer) asteroid st
"Sixty-six million years ago, all dinosaurs (except for birds) were wiped from the face of the Earth..." writes Gizmodo. "What's indisputable about this pivotal moment in Earth's history is that a 6.… [+2184 chars]
