Experts say a petroglyph in New Mexico’s Chaco Canyon may depict a solar eclipse from 920 years ago.
Read MoreTag: astronomy
Photos: Watch the ‘Shadow Dagger’ Solar Calendar Mark the Equinox
See for yourself how ancient petroglyphs found in Arizona mark the spring equinox with a “shadow dagger.”
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Thousands of Ancient Petroglyphs, ‘Dramatic’ Solar Calendar Reported in N. Arizona
Archaeologists have uncovered a trove of previously undocumented rock art in northern Arizona, including a prehistoric solar calendar that has been marking the seasons for more than 700 years.
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Ceremonial ‘Axis’ Road Discovered in Heart of Ancient City of Cahokia
After more than 85 years of study and speculation, recent digs have confirmed the presence of a ceremonial road running through the heart of Cahokia, the largest prehistoric city north…
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Prehistoric Meteorite ‘Shrines’ in Arizona May Be Linked, Says Archaeo-Astronomer
Two twelfth-century settlements a hundred kilometers apart in Arizona were apparently built by discrete cultures, but they have at least one trait in common: In each complex is a hidden,…
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