One of the best tales of all time from geologic history is the story of the meteor impact that killed the dinosaurs. As it turns out, though, there are still many unanswered questions about what exactly happened the moment the meteor connected with our planet. In fact, until recently, scientists had yet to collect sediment cores from the center of the impact crater. On today’s show, producer Michael Osborne talks with Sean Gulick, co-chief scientist of an expedition that recently drilled the Chicxulub crater off the coast of Mexico. Sean revisits the moment when the asteroid hit, and he discusses what the scientists hope to find from their drilled samples. Also, we have a short segment featuring a conversation with Science Magazine reporter Paul Voosen about a news update from the Anthropocene Working Group.