What IS this strange sound from the sky? Noise heard across the globe for nearly a DECADE - but nobody has an explanation

• One woman in Canada has recorded chilling sounds several times
• At its strongest, eerie noises sounds like a trumpet
• Similar outbursts have been captured on countries around the world including the U.S., Ukraine, Germany and Belarus 
• One man in the U.S. says he woke up screaming after hearing the sounds

Read more: http://www.dailymail.co.uk/travel/travel_news/article-3084260/What-strange-sound-sky-Noise-heard-globe-nearly-DECADE-explanation.html#ixzz3aMBnFCdZ