The Nebra Sky Disk @museum.de

The Nebra Sky Disk. You are looking at an almost circular bronze plate approximately 32 centimeters in diameter. Golden inlays are incorporated into it. Dating back approximately 3,700 to 4,100 years, it is considered the oldest known concrete representation of the sky.

Visitor: So I’m standing in front of an object from the Early Bronze Age. And I’m here in 2026 at the State Museum of Prehistory in Halle.

Scientist: Then you’re looking at something that originates from the Aunjetitz culture of Central Europe. The disc depicts astronomical phenomena and religious symbols. It wasn’t created in a single step. Research suggests that it was modified over several distinct phases.

Visitor: What is known about its appearance?

Scientist: The plate weighs about 2,050 grams. Its thickness decreases from the center to the edge. It was probably not green originally. The current green color developed only through long-term storage in the ground. The gold sheets were incorporated through inlaying. Metallographic analyses also reveal a complex hot-forging process. To achieve its final shape, the disc was heated to around 700 degrees Celsius and forged approximately ten times.

Visitor: And where did the metals come from?

Scientist: Analyses indicate that the copper originated from an Early Bronze Age ore deposit at Mitterberg in Austria. The tin matches that from tin mines in Cornwall. The chemical composition of the gold overlays was also examined. It is identical to gold from the River Carnon in Cornwall.

Visitor: What was the disc originally designed to look like?

Scientist: At first, it had 32 round gold plates, plus a larger round plate and a crescent-shaped plate. Seven small plates are arranged closely together. Later, the horizontal arcs were added to the edges. After that, another arc was added to the lower edge, the so-called sun barque. Before it was buried, the left horizontal arc was already missing again. In addition, the edge was pierced with 39 very regularly spaced holes. The reverse side remained without any appliqués.

Visitor: What does all this represent?

Scientist: There are various interpretations. According to one well-known interpretation, the gold plates represent stars. The group of seven was associated with the Pleiades, although this has been questioned. The large disc was initially interpreted as the sun, and later also as the full moon. The crescent is considered a waxing moon. The sun barque is understood as a later addition. It is generally not attributed a calendrical function. It could represent the sun’s nightly passage. A ritual use is also being considered.

Visitor: How was the disk found?

Scientist: On July 4, 1999, looters discovered it on the Mittelberg near Nebra using a metal detector. The find also included two bronze swords, two axes, a chisel, and fragments of spiral-shaped arm rings. In 2002, the Sky Disk was seized by the Swiss police in Basel. The looters’ information regarding the discovery site was later corroborated by forensic investigations.

Visitor: And its age?

Scientist: The accompanying finds date to around 1600 BC. A piece of birch bark found on a sword was radiocarbon-dated and yielded a date of around 1600 to 1560 BC. In 2020, the dating to the Early Bronze Age was publicly questioned. That same year, a research group clearly refuted these doubts.

Visitor: So today the disc belongs here.

Scientist: Yes. It has been part of the collection of the State Museum of Prehistory in Halle since 2002. Since 2013, it has been part of the UNESCO Memory of the World Register. And the place where it lay buried for about 3,600 years remains connected to it.

Visitor: The longer I look at it, the more it seems like a picture made up of knowledge, symbols, and a long history.

Scientist: That is precisely where its special power lies.