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Happy Birthday to Pluto, the Planet That Wasn't | February 18 marks the “birthday” of Pluto, a celestial body that has given astronomers great difficulty over the past 83 years. A nameless mystery planet emerged as a theory in... | 12-02-2013 | 02-12-2013 | No | jwalsh | 0 |
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General | Library | Astronomy, astrophysics, dwarf planet, Earth, Eris, gravity, history, Mickey Mouse, NASA, Neil DeGrasse Tyson, orbits, planets, Pluto, solar system, space, space exploration, United States, Uranus | Jeremy Walsh |
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