Join Phil for a tour of our capital-M Moon, from surface features, inside to the core, and back in time to theories about its formation.

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Chapters:
Introduction: The Moon 00:00
How Big is the Moon? 0:54
Internal Structure of the Moon 1:56
The Moon's Surface: Highlands and Maria 2:15
How the Moon Formed: The Giant Impact Hypothesis 3:42
The Moon's Craters 6:32
Water on the Moon? H2O Yeah! 8:06
Review 9:06

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PHOTOS/VIDEOS
Moon Phase 47.7% http://svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA/Goddard Space Flight Center Scientific Visualization Studio]
The Blue Marble http://visibleearth.nasa.gov/view.php... [credit: Credit: NASA Goddard Space Flight Center Image by Reto Stöckli]
Dramatic Moonset http://www.eso.org/public/images/potw... [credit: G.Gillet/European Southern Observatory]
Structure of the Moon: http://en.wikipedia.org/wiki/Moon#med... [credit: Kelvin Song via WikiMedia Commons]
Crater Science Investigations: http://svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA/Goddard Space Flight Center]
Lunar crater Daealus http://commons.wikimedia.org/wiki/Fil... [credit: NASA]
Mare Humorum http://commons.wikimedia.org/wiki/Fil... [credit: NASA]
Luna 3: http://nssdc.gsfc.nasa.gov/imgcat/htm... [credit: NASA]
Farside!: http://lroc.sese.asu.edu/posts/298 [credit: NASA/GSFC/Arizona State University]
Theia Earth Collision: http://io9.com/the-incredibly-violent... [credit: Ron Miller, used with permission]
Earth Seen From Early Moon: http://io9.com/the-incredibly-violent... [credit: Ron Miller, used with permission]
Moon Struck: http://svs.gsfc.nasa.gov/cgi-bin/deta... [credit: NASA's Goddard Space Flight Center]
Tycho: http://www.nasa.gov/images/content/41... [credit: NASA/Goddard/Arizona State University]
Double crater on the moon: http://www.esa.int/spaceinimages/Imag... [credit: ESA/SPACE-X (Space Exploration Institute)]
Stream of Craters: http://www.nasa.gov/mission_pages/LRO... [credit: NASA/Goddard Space Flight Center/Arizona State University]
Full Moon: http://en.wikipedia.org/wiki/Moon#med... [credit: Gregory H. Revera]
Rille on the valley floor, photographic mosaic from Apollo 15: http://en.wikipedia.org/wiki/Schroter... [credit: NASA]
New Views of Lunar Pits: http://lroc.sese.asu.edu/posts/230 [credit: NASA/GSFC/Arizona State University]
Crater Erlanger: http://www.nasa.gov/mission_pages/Min... [credit: NASA/GSFC/Arizona State University]