What is A Planet? - NASA Science - 1 views
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Christopher Palma on 11 Jul 13Short (7 min) video from NASA talking about the ~7 year old debate over the nature of a planet and the creation of the dwarf planet category
Realtime links for a current mission or 3D tour of the solar system. http://eyes.nasa.gov/index.html As I post this the Mars Science Lab is 33 hours away from entry