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    An A.I. Model Helped Uncover 303 Previously Unseen Nazca Lines in Peru

    All images courtesy of Masato Sakai et al.

    An A.I. Model Helped Uncover 303 Previously Unseen Nazca Lines in Peru

    September 26, 2024

    Art History

    Grace Ebert

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    In 2022, we shared news of a monumental discovery at Peru’s Nazca Pampa, a UNESCO World Heritage site once home to pre-Inca Indigenous peoples who were fond of etching gargantuan artworks into the earth’s surface. Discovered in 1927, archaeologists spent nearly a century uncovering 430 figurative glyphs depicting animals, people, and hybrid creatures.

    But thanks to a new A.I.-trained system, researchers have identified an additional 303 drawings in just six months as detailed in a study published this week in the Proceedings of the National Academy of Sciences. Included in the findings are various birds, cats, ceremonial acts, and even a killer whale wielding a weapon.

    Dating back at least 2,000 years, the works offer insight into the cultural and spiritual practices of the ancient civilization. Although theories about the purpose of the lines range from calendars to agriculture and human migration, researchers know they were made by removing darker stones to reveal lighter, desert sand below.

    Whereas drones have helped to identify the giant line drawings that stretch across the desert, the A.I. model has been adept at detecting the smaller, relief-type renderings that mainly portray wild animals and are more difficult to find.

    The larger of the glyphs depict primarily humans, domesticated animals, and lone heads and “are typically located within viewing distance (on average 43 meters) of ancient trails that crisscross the Nazca Pampa and were most likely built and viewed at the individual or small-group level,” researchers say, noting that the smaller “are found an average of 34 meters from the elaborate linear/trapezoidal network of geoglyphs, which suggests that they were probably built and used on a community level for ritual activities.”

    Using aerial and satellite images of the site along with LIDAR data, archeologists trained the A.I. model to identify the sometimes imperceptible lines. The team then reviewed and confirmed the results by traveling to the location. They estimate that the A.I. model is 21 times faster at perceiving the works than humans. (via Smithsonian Magazine)

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    An Ancient Peruvian Site Reveals a Remarkable Painted Throne Room

    All images courtesy of the Denver Museum of Nature & Science, shared with permission

    An Ancient Peruvian Site Reveals a Remarkable Painted Throne Room

    September 25, 2024

    Art History Science

    Kate Mothes

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    Between about 350 and 850 C.E., a society known as the Moche thrived in the coastal valleys of northern Peru. Pañamarca, in the Nepeña Valley, is the southernmost center of the Moche culture and the site of a remarkable series of recent archaeological discoveries, including the latest: a monumental pillared hall with vibrantly painted walls.

    The Archaeological Landscapes of Pañamarca, founded in 2018, is a collaboration between Peruvian and U.S. archaeologists, art historians, and conservators. Its research and digs are supported by the National Geographic Society, the Institute of Latin American Studies at Columbia University, and the Avenir Conservation Center at the Denver Museum of Nature & Science.

    This year, archaeologists uncovered a pillared room containing evidence of its use by a high-status female leader. Scenes depict the powerful woman receiving visitors in procession or seated upon a throne.

    “Scholars will debate whether the woman painted on the walls of the throne room is human or mythical (a priestess, goddess, or queen),” researchers say. “But the physical evidence of the throne, including the erosion to its back support and the recovery of greenstone beads, fine threads, and even human hair, make clear that it was occupied by a real living person—and the evidence all points to a seventh-century woman leader of Pañamarca.”

    The figure portrayed on the walls is associated with the crescent moon, the sea and its creatures, and the fiber arts. Additional murals uncovered this past July reveal a scene of an entire workshop of women spinning and weaving, along with a retinue of men carrying textiles and the leader’s crown—which includes her braids.

    Lisa Trever, professor of art history at Columbia University, says, “Pañamarca continues to surprise us, not only for the ceaseless creativity of its painters but also because their works are overturning our expectations of gender roles in the ancient Moche world.”

    The colorful wall paintings of Pañamarca were first recorded in the 1950s, depicting battles between supernatural beings, priests, warriors in procession, a unique two-faced man, and ceremonial activities.

    “Moche archaeology is well known for its rich, elite tombs, impressive architecture and artworks, and elaborate religious artifacts and imagery,” says a project statement. Atop a granite hill, the site consists of a stepped adobe platform, two lower platforms, a walled plaza, and a number of other structures.

    Dig deeper on the Pañamarca project’s website and Instagram.

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