Starry Secrets: Scientists Uncover Hidden Role of the Milky Way in Ancient Egyptian Mythology

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A new study reveals how the Milky Way might have accentuated the role of Nut, the Egyptian sky-goddess, and draws parallels between Egyptian beliefs and those of other cultures, underscoring the universal significance of celestial phenomena.

Ancient Egyptians were known for their religious beliefs and astronomical knowledge of the Sun, Moon, and planets, but up until now it has been unclear what role the Milky Way played in Egyptian religion and culture.

A new study by a University of Portsmouth astrophysicist sheds light on the relationship between the Milky Way and the Egyptian sky-goddess Nut.

Nut is goddess of the sky, who is often depicted as a star-studded woman arched over her brother, the earth god Geb. She protects the earth from being flooded by the encroaching waters of the void, and plays a key role in the solar cycle, swallowing the Sun as it sets at dusk and giving birth to it once more as it rises at dawn.

The Role of the Milky Way

The paper draws on ancient Egyptian texts and simulations to argue that the Milky Way might have shone a spotlight, as it were, on Nut's role as the sky. It proposes that in winter, the Milky Way highlighted Nut's outstretched arms, while in summer, it traced her backbone across the heavens.

Associate Professor in Astrophysics, Dr Or Graur, said: "I chanced upon the sky-goddess Nut when I was writing a book on galaxies and looking into the mythology of the Milky Way. I took my daughters to a museum and they were enchanted by this image of an arched woman and kept asking to hear stories about her. This sparked my interest and I decided to combine both astronomy and Egyptology to do a double analysis - astronomical and cross-cultural - of the sky-goddess Nut, and whether she really could be linked to the Milky Way."

The attached image shows the sky goddess Nut, covered in stars, is held aloft by her father, Shu, and is arched over Geb, her brother the Earth god. On the left, the rising sun (the falcon-headed god Re) sails up Nut's legs. On the right, the setting sun sails down her arms towards the outstretched arms of Osiris, who will regenerate the sun in the netherworld during the night. Credit: E. A. Wallis Budge, The Gods of the Egyptians, Vol. 2 (Methuen & Co., 1904).

Dr Graur drew from a rich collection of ancient sources including the Pyramid Texts, Coffin Texts, and the Book of Nut, and compared them alongside sophisticated simulations of the Egyptian night sky.

He found compelling evidence that the Milky Way highlighted Nut's divine presence.

Cultural Comparisons and Future Research

Furthermore, Dr Graur connected Egyptian beliefs with those of other cultures, showing similarities in how different societies interpret the Milky Way.

He said: "My study also shows that Nut's role in the transition of the deceased to the afterlife and her connection to the annual bird migration are consistent with how other cultures understand the Milky Way. For example, as a spirits' road among different peoples in North and Central America or as the Birds' Path in Finland and the Baltics.

"My research shows how combining disciplines can offer new insights into ancient beliefs, and it highlights how astronomy connects humanity across cultures, geography, and time. This paper is an exciting start to a larger project to catalog and study the multicultural mythology of the Milky Way."

Reference: "The Ancient Egyptian Personification of the Milky Way As the Sky-Goddess Nut: An Astronomical and Cross-Cultural Analysis" by Or Graur, 2 April 2024, Journal of Astronomical History and Heritage.

DOI: 10.3724/SP.J.1440-2807.2024.01.02