Astronomy: Observations and Theories
The Jovian Worlds (#118)
This lesson begins with an explanation of the processes that allowed the planets in this part of the solar system to grow to such large sizes. How the gravity of Jupiter produces tidal heating of Io and Europa, causing the extensive volcanic activity on Io and a liquid ocean beneath the surface of Europa is explained. Saturn’s interior and atmosphere are compared with those of Jupiter. The formation and characteristics of the ice giants Uranus and Neptune are also discussed.
Education Record Rights: Fixed expiration date - Dec 31, 2009.
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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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