Weird noise heard across the globe for nearly a DECADE without explanation

Weird noise heard across the globe for nearly a DECADE without explanation | Daily Mail Online: "A mysterious noise from the sky is continuing to baffle people all over the world - as well as giving those who hear it sleepless nights. Sounding like a trumpet or a collective from a brass section of an orchestra, a selection of videos shot from the Canada to Ukraine, via the U.S., Germany and Belarus show strange goings on above us."