Asteroids

Rather than worrying about horse-meat in the cow food chain, one pope replacing another, we should be more concerned with the fact that the sky is falling down. Well, bits of rocks are falling down, once in a while. Recently, an asteroid came quite close to falling on Earth. The largest recorded similar event happened in 1908 in Russia. It is thought that a massive asteroid is at the source of the extinction of dinosaurs about 65 millions years ago. Every cloud has a silver lining, the disappearance of dinosaurs allowed little mammals to thrive. They could then evolve in the tree of life toward human beings.