Ancient astronauts
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Ancient astronauts are a pseudoscientific set of beliefs that intelligent extraterrestrial beings visited Earth and made contact with humans in antiquity and prehistoric times. Proponents of the theor
Petroglyphs from Val Camonica, Italy; ancient astronauts proponents believe that these figures resemble astronauts.
Mesopotamian cylinder seal
A Dogū figurine made during Jōmon period (dated 1000–400 BCE).
Votive relief of the winged priest of Dudu on display at the Louvre Museum, France
Giorgio A. Tsoukalos
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Giorgio A. Tsoukalos is a Swiss-born writer, and television presenter and producer. He is a ufologist and a promoter of the ancient astronauts hypothesis. He is host and producer of Ancient Aliens, a
Ancient astronauts
…in mass media include Robert Charroux, Jacques Bergier, Jean Sendy, Erich von Däniken, Alexander Kazantsev, Zecharia Sitchin, Robert K. G. Temple, Giorgio A. Tsoukalos, David Hatcher Childress, Peter Kolosimo, and Mauro Biglino. Various terms are used to reference claims about ancient astronauts, such as ancient aliens…
Tsoukalos in 2025