GRAPHIC: The Deepwater Horizon disaster five years later

Late on the night of April 20, 2010, methane gas blew out from a wellhead a mile below the Gulf of Mexico. At a pressure 150 times greater than air at the Earth's surface, the gas shot up through a drilling riser to the Deepwater Horizon oil platform and exploded, killing 11 workers. As the burning rig sank two days later, the worst …