Scientists uncover 'deep impact' disaster from spaceA new report suggests that a massive object from space smashed into what is now the Moroccan desert 380 million years ago, wiping out 40% of the world's marine species. The discovery adds to the evidence linking such impacts with mass extinction events. Only one other impact by a large comet or asteroid has convincingly been held responsible for a mass extinction. That occurred off the Yucatan peninsular in Mexico 65 million years ago and is thought to have ended the reign of the dinosaurs. The newly discovered impact coincided with the Kacak/otomari extinction,...