
Nebra sky disc: Bronze Age sky almanac and the oldest known cosmos image
The Nebra sky disc, a 32 cm Bronze Age bronze-and-gold disk with a sun, crescent, and 32 gold dots (including a seven-star cluster likely the Pleiades), is regarded by researchers as the world’s oldest concrete depiction of astronomical phenomena. Found by looters in Germany in 1999 and recovered in a 2002 Basel/Rhine sting, it now rests in Halle and was added to UNESCO’s Memory of the World. Dating relies on indirect evidence due to looting (no soil layers were recorded), with a central debate: whether it dates to about 1600 BC (Bronze Age) or possibly the first millennium BC (Iron Age). Its meaning is also debated—whether it’s a precise star map or a symbolic sky-almanac used to track solar and lunar cycles.













