Chicxulub 'dinosaur crater' investigation begins in earnest

Scientists have obtained remarkable new insights into the asteroid impact that wiped out the dinosaurs. They have been examining rocks from the crater that the 15km-wide space object dug out of what is now the Gulf of Mexico some 66 million years ago. The team says it can see evidence in these materials for how life returned to the scene soon after the calamity. Descendants of these small organism