Explosions from a sinking ship are among the unexpected sounds detected by 50 highly sensitive seismometers placed on the floor of the Atlantic Ocean as part of an international collaboration led by UCL researcher Professor Ana Ferreira.
Scientists from Scotland's University of Saint Andrews and two major German research centers have for the first time determined a "conclusive picture" of the initial trigger and subsequent processes responsible for Earth's biggest mass extinction. The answer? Massive amounts of carbon dioxide spewed into the atmosphere from a volcanic eruption.