An alien invasion? Some exploding meteors?, Earthquakes? Or just signs of major Earth changes happening deep within our Planet and soon dooming the world? Probably not, and it certainly isn't the first time unexplained noises were heard in Maine's night sky.

The most recent one comes from the YouTube page ParanormalSideshow, which some people might instantly say it must be a hoax to get clicks and views. In this video posted yesterday, you can clearly hear some haunting mysterious sounds that no one knows where it's coming from. And there is no scientific explanation as to what the sounds are.