Researchers used artificial intelligence to scan aerial images of the Nazca Pampa in Peru, then confirmed on the ground the existence of 303 previously unknown geoglyphs. This almost doubles the known set of figurative designs in the area and shows how AI can speed up archaeological work.
Geoglyphs are large drawings on the ground made by clearing dark stones to reveal lighter soil. The newly mapped figures include human-like shapes, domesticated animals such as camelids, heads shown apart from bodies, and sea creatures. One striking example is a killer whale depicted with a knife.
The study distinguishes two main styles. Small relief-type figures sit close to winding footpaths and were likely meant to be seen by walkers, working as signs about daily life and human activity. Larger line-type figures tend to show wild animals and sit along a network of straight lines and trapezoids, likely linked to community rituals.
Several media pieces described some human shapes as alien-like. The scientific work itself attributes these to stylized human figures made by ancient Andean cultures, not to extraterrestrials.
The project was led by Yamagata University with IBM Research. AI triaged huge image sets to guide field teams, and many more candidate sites remain to be checked in future surveys. The finds deepen understanding of how different figures were used, from small signs beside paths to large shapes tied to shared rites.
The figures date to the late Paracas and early Nazca periods, about two thousand years ago.
PNAS – AI-accelerated Nazca survey nearly doubles the number of known figurative geoglyphs and sheds light on their purpose – 2024
Peer-reviewed study reporting 303 newly confirmed figurative geoglyphs found with an AI-guided survey. It explains the two styles, their locations relative to paths and line networks, and interprets small relief-type figures as signs viewed by individuals and small groups.
Yamagata University – AI-accelerated Nazca survey nearly doubles the number of known figurative geoglyphs and sheds light on their purpose – September 24, 2024
Official press release detailing the collaboration with IBM Research, the rapid discovery rate, examples of motifs, and the interpretation that small relief-type geoglyphs acted as billboards along trails while larger line-type figures served communal rituals.
Live Science – ‘Knife-wielding orca’ and alien-looking figures among 300 Nazca Lines discovered in groundbreaking AI study – September 23, 2024
Popular explanation of the findings with photos and clear examples, including the killer whale with a knife and stylized human figures. Emphasizes the role of AI and the large number of candidates still to be checked.
The Guardian – Archaeologists use AI to discover 303 unknown geoglyphs near Nazca Lines – September 26, 2024
News report placing the discovery in cultural context, noting dates around 200 BCE, the use of drones plus AI, and the likely functions of small signs versus large ritual figures.
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