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Intro Astronomy 2014. Class 4: Eclipses, Mercury, Venus-Earth-Mars Atmospheres, Venus

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Lecture 4 of Dr. Bruce Betts' 2014 online Introductory Planetary Science and Astronomy course covers eclipses, Mercury (characteristics, geology, core, exploration, water ice at poles), the Terrestrial Planet Atmospheres/Triad Planets -- a comparison of Venus, Earth, and Mars and why their atmospheres are so different, including discussions of the Greenhouse Effect, temperature systems (Kelvins, Celsius, Fahrenheit), and plate tectonics; and Venus (characteristics, geologic evolution, exploration).  Recorded at California State University Dominguez Hills.

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