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Chasing the Equinox

Tune in to the National Geographic Channel this Monday, Sept. 23 at 8 pm EST to see "Chasing the Equinox." The show explores equinox light alignments in four ancient sites of the world: Chaco Canyon, Angkor Wat, Malta, and Chichen Itza. Anna Sofaer presents the Chacoans’ light markings on spiral rock carvings in simultaneous events with the Chaco building alignments to the equinox. What a wonderful way to greet the Fall Equinox!