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Join the Live@ crew and NASA scientists as we delve into the ancient knowledge of the Chacoans, daily sky watchers who amassed a great knowledge about the movements of the sun. And learn why today's astronomers and solar physicists continue to watch the sun, using modern ground-based observatories and orbiting space telescopes.
Project: Ancient Observatories: Chaco Canyon | Browse All
Date: December 21, 2004
Category: History of Science
Subject(s): Physics, History