Meteors and Extinctions

Avenue Jeanne d'Arc Begles 33130

What if some of the greatest disasters in Earth's life history came from space?\n\nAbout 66 million years ago, a giant asteroid struck the Earth, triggering a planetary catastrophe that contributed to the extinction of the dinosaurs. But was this spectacular event an isolated case in our planet's history?\n\nCould other celestial impacts have disrupted the course of evolution and caused major extinctions? What role might astronomical phenomena have played in the major biological crises that have marked the history of life?