To the ground each year One widely accepted theory Is that the impact of an asteroid 6 miles ( 10 kilometers ) in diameter Could have been responsible for The extinction of many life forms Including the dinosaurs 65 million years ago
To the ground each year One widely accepted theory Is that the impact of an asteroid 6 miles ( 10 kilometers ) in diameter Could have been responsible for The extinction of many life forms Including the dinosaurs 65 million years ago