Astronomy Topics (14)
Roger Penrose: Twistor Theory in a Cosmological Setting
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Hands-On Astronomy: Observing Stars and Planets
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Astrobiology and the Search for Extraterrestrial Life
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Topics in Modern Astronomy
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Astronomy: Crash Course
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Astronomy 101 from Skynet University
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Survey of Astronomy
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Introduction to Astrophysics
taught by Joshua Bloom | added 11 years ago | viewed 39,673 times
Astrobiology and Space Exploration (Winter 2010)
taught by Lynn Rothschild | added 11 years ago | viewed 33,618 times
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Kepler's Second Law

This animation illustrates Kepler's Second Law of Planetary Motion (essentially a result of conserva... (see more)

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