(30. November) -Sounds reported last night from Aberdeen to West Sussex to Devon
– Twitter users blamed meteors, fireworks, aliens and ‚the end of the world‘
– A woman in south London managed to record the mysterious bangs
– Now an expert says the noises sound like a ‚pulse detonation engine‘
– Dr Bhupendra Khandelwal is helping develop technology behind engines
– Conspiracy theorists say power source could be behind U.S. spy plane
– MoD said no aircraft scrambled; Met Office said unusual weather not cause