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Astronomy: Observations and Theories

Observing the Sky (#102)

Explaining the concept of a scientific model, this lesson introduces the celestial sphere as a model to help describe and organize the night sky. Several specialists explain how different cultures named stars and constellations, and brought the aspects of the sky into their buildings and structures, such as those of Chaco Canyon in the southwestern United States.

Education Record Rights: Fixed expiration date - Dec 31, 2009.

This show aired...

Program Description: Astronomy: Observations and Theories explores a broad range of topics, concepts, and principles, from the motions of the visible sky to dark matter, from our own planet to the stars and galaxies. The series examines evidence for the big bang and continuing evolution of the universe and tracks the formation, life, and death of stars. Programs also depict how astronomers have come to know what they know about the universe and how they are still seeking answers to some of the most fundamental questions about the universe.

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