The Nebra Sky Disk is a bronze disk discovered in Germany, dating back to around 1600 BCE. It features gold inlays representing celestial bodies, including the sun, moon, and stars. This artifact is considered one of the oldest known representations of the cosmos in Europe. The disk is believed to have been used for astronomical purposes, possibly to track the changing seasons or lunar cycles. Its discovery has provided valuable insights into the understanding of astronomy and timekeeping in ancient European cultures. The Nebra Sky Disk is now housed in the State Museum of Prehistory in Halle, Germany.