UPDATE: Authorities say they now know what was causing the "booms" in the Shoshone area during the weekend. According to the Shoshone Police Department, Lincoln County Sheriff's deputies determined the sounds were made by Tannerite, or exploding targets, southwest of Shoshone.
Monday more Magic Valley residents reported hearing mysterious loud booming sounds. They were reportedly heard as far away as Gannet. What are they? The Air Force? Aliens? A new, top secret pulse engine? Did you hear them?