The Sun Dagger's Tale: How did they do it?

When Santa Fe author and archaeoastronomer Anna Sofaer discovered the Sun Dagger near the top of Fajada Butte at Chaco Canyon in 1977, she tumbled headlong into an enduring mystery that has led to scientific papers, projects, books, academic controversies, documentaries and interactive computer models. Sofaer will lead a presentation about her work and findings from 7-8:30 p.m. Thursday at the Bradbury Museum.All places have their histories, but New Mexico is fortunate in the United States to have an extremely rich prehistory, much of it centered and symbolized in what was once a major urban outpost in the San Juan basin in the northwestern corner of the state.  However dimly Chaco culture is perceived, now 1,000 years and more since it flourished, the importance and significance of the ancient architecture and the vast ritual landscape at Chaco Canyon continue to dazzle tourists and puzzle scholars.Anna Sofaer’s Solstice Project has produced two documentaries, both narrated by Robert Redford.

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