Hypothesis popularized by Zecharia Sitchin proposing that extraterrestrial Anunnaki came to Earth to extract gold to repair the atmosphere of Nibiru, reinterpreting the divine labor strike in the Atra-Hasis Epic (where the Igigi dig irrigation canals for the Tigris and Euphrates).
Gold Mining Theory (detailed hypothesis), Zecharia Sitchin (originator of the claim), Atra-Hasis Epic (cuneiform labor myth), Human Labor (Mesopotamian motif)