Al Jazeera: Pilot and scientist Steve Conley slipped behind the controls of a nimble single-engine Mooney aircraft and took to the air over the Four Corners region of the U.S. West as part of a quest to find the sources of a mysterious methane hot spot detected over the area from space.
Flying at about 2,000 feet, he banked hard left to circle the ventilation shaft of a coal mine as inlet tubes under the right wing of the aircraft sucked in air, which passed through equipment that detects and quantifies methane...