German researchers have reconstructed the ancient manufacturing process of the Nebra Sky Disc, one of Europe's best-known archaeological finds, and discovered the impressive metallurgical skills of Early Bronze Age craftsmen.Discovered in 1999 on Mittelberg Hill near Nebra, Germany, the Nebra Sky Disc is a 30-centimeter-diameter bronze artifact. The disc holds gold inlays that represent celestial elements: the full moon or sun, crescent moon, and stars. The disc dates to between 1800 and 1600 BCE and is associated with the Únětice culture. It is, in general, regarded as the oldest representation of the cosmos in the world.Researchers at Otto von Guericke...