Nuremberg Celestial Phenomenon

Supposed celestial phenomenon in the Holy Roman Empire

Science & Technology

Nuremberg Celestial Phenomenon — Image via Wikimedia Commons or Wikipedia.

Overview

What happened

On April 14, 1561, the population of Nuremberg, a major city in the Holy Roman Empire, witnessed a bizarre and intriguing celestial phenomenon, with a m...

Date

April 14, 1561

Key people

Hans Glaser

Why it matters

This article provides a unique perspective on the Nuremberg celestial phenomenon of 1561, with a focus on the historical context and the social and cultural climate of 16th-century N...

What was Nuremberg Celestial Phenomenon?

In April 1561, a broadsheet by Hans Glaser described a mass sighting of celestial phenomena or unidentified flying objects (UFO) above Nuremberg (then a Free Imperial City of the Holy Roman Empire). Ufologists have speculated that these phenomena may have been extraterrestrial spacecraft. Skeptics assert that the phenomenon was likely to have been another atmospheric phenomenon, such as a sun dog, although the print does not fit the usual classic description of the phenomena. A broadsheet news article printed in April 1561 describes a mass sighting of celestial phenomena. The broadsheet, illustrated with a woodcut and text by Hans Glaser, measures 26.2 centimetres (10.3 in) by 38.0 centimetres (15.0 in). The document is archived in the prints and drawings collection at the Zentralbibliothek Zürich in Zürich, Switzerland.

Background and consequences

According to the broadsheet, around dawn on 14 April 1561, "many men and women" of Nuremberg saw what the broadsheet describes as an aerial battle "out of the sun", followed by the appearance of a large black triangular object and exhausted combatant spheres falling to earth in clouds of smoke.

Related on thisDay

Nuremberg Celestial Event — April 14, 1561

Over 1,000 spherical objects filled the sky above Nuremberg in 1561, a bizarre event in the Holy Roman Empire that remains unexplained to this day.

Sources and further reading

Use the dated article for the day-specific account; use these references to check the event record and explore its wider historical context.

Date article: Nuremberg Celestial Event — April 14, 1561 Wikipedia source

Cite this page

MLA

“Nuremberg Celestial Phenomenon.” thisDay, thisday.info/history/nuremberg-celestial-phenomenon/. Accessed 19 Oct. 2026.

APA

Nuremberg Celestial Phenomenon. (n.d.). thisDay. Retrieved October 19, 2026, from https://thisday.info/history/nuremberg-celestial-phenomenon/

Chicago

“Nuremberg Celestial Phenomenon.” thisDay. Accessed October 19, 2026. https://thisday.info/history/nuremberg-celestial-phenomenon/.

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