Incidents of these mystery booms are becoming more frequent Residents in Alabama were left baffled last week when a loud boom resounded across much of the state. The boom, nicknamed 'Bama Boom', has left experts stumped, with suggested causes ranging from supersonic aircrafts to meteors exploding in the atmosphere. This isn't the first time that the mysterious sound has been heard, and incidents are becoming more frequent according to some reports. This year alone, similar noises have been reported 64 times this year, in locations including Michigan, Lapland, St Ives, Swansea and Yorkshire. ... The Birmingham National Weather Service tweeted:...