1561 Celestial Phenomenon over Nuremberg
Citizens of Nuremberg witness a spectacular aerial display of spheres, cylinders, crosses, and other shapes battling across the morning sky. Printer Hans Glaser documents the event in a famous broadsheet woodcut that becomes one of the earliest illustrated accounts of unexplained aerial phenomena.

Background
At dawn on April 14, 1561, between four and five in the morning, the inhabitants of Nuremberg—then a Free Imperial City of the Holy Roman Empire—observed a terrifying celestial spectacle. Contemporary accounts, including a broadsheet by Hans Glaser, described numerous objects appearing near the sun in what seemed like an aerial conflict.
The Incident
The event occurred at dawn on April 14, 1561.
Witnesses saw a multitude of objects near the sun.
The display lasted approximately one hour.
Zeugenaussagen
- Large numbers of spheres: some blood-red, some blue-grey, some black.
- Cylindrical forms from which smaller spheres emerged.
- Crosses, crescents, and a large black triangular shape.
- Objects appeared to engage in aerial conflict.
- Several fell to the ground trailing smoke, as if consumed by fire.
Hans Glaser's Broadsheet
Hans Glaser, printer and woodcut artist, produced a broadsheet shortly afterward.
It measured roughly 26 by 38 centimetres.
The broadsheet combined a detailed woodcut illustration with a written account.
Interpretation
The text interpreted the phenomenon as a divine warning.
This reflected the religious framework of sixteenth-century Europeans for extraordinary events.
Preservation
The original document is preserved in the prints and drawings collection of the Zentralbibliothek Zürich.
Modern Recognition
The event remained obscure until the twentieth century.
Carl Jung referenced it in his 1958 work Flying Saucers: A Modern Myth of Things Seen in the Skies.
Conventional Explanations
Explanations include atmospheric optical phenomena such as sundogs or parhelia.
Sceptics note the descriptions do not align neatly with any single known effect.
Significance
The Nuremberg broadsheet of 1561 is one of the earliest illustrated accounts of unexplained aerial phenomena in European history. Its rediscovery in the twentieth century through Carl Jung's work helped establish a historical lineage for anomalous sky observations that predates the modern UFO era by nearly four centuries. The document demonstrates that mass observations of unusual aerial objects are not exclusive to the technological age.