Clip shows mysterious black cloud hanging over the village of Shortandy . The perfect hoop shape sat in the air not moving for more than 15 minutes . Eerie video has been viewed tens of thousands of times on Russia . While some viewers are suggesting the cloud was an alien spacecraft , experts think it could have been caused by nearby factories .
Clip shows mysterious black cloud hanging over the village of Shortandy . The perfect hoop shape sat in the air not moving for more than 15 minutes . Eerie video has been viewed tens of thousands of times on Youtube . While some viewers are suggesting the cloud was an alien spacecraft , experts think it could have been caused by nearby factories .