Daily Mail – Researchers plan to drill 5,000 feet (1,500 meters) below the surface of the Chicxulub crater in Mexico to try and answer the question of how the dinosaurs died out.

http://www.dailymail.co.uk/sciencetech/article-3037457/Researchers-drill-5-000-feet-surface-Chicxulub-crater-Mexico-bid-massive-asteroid-killed-dinosaurs.html