Supercomputer simulates how the asteroid killed all dinosaurs

Most of us know that dinosaurs are an extinct species (已滅絕的物種). There are many theories (理論) explaining the extinction of dinosaurs. The most commonly accepted one is the falling of an asteroid (小行星) 66 million years ago. Asteroids are large, rocky objects that orbit the Sun. They can be as small as a few metres, but they can also be as ...Read More