People in the Triad and beyond shared their theories — some a little more "out there" than others — on social media about what caused a loud noise and, for some, shaking, early Tuesday. The U.S.

Frank Critzer’s cave under Giant Rock ended in a mysterious blast—and years later, George Van Tassel claimed extraterrestrial plans for a time machine. Join us in the Mojave to uncover hidden bunkers, ...