Beneath the stone-paved streets of Cusco, a city layered with centuries of Andean and colonial history, researchers have located what may be the most significant Inca discovery in recent years. For ...

For decades, engineers have searched for underground tunnels by sending signals from the surface downward—an approach that can miss what lies below. By reversing that approach, researchers at the ...

Breaking through the icy veil of Greenland, a revolutionary discovery has been made that reshapes our understanding of the region’s history. New underground radar technology has revealed a giant ...