cool nasa videos- Pluto, et al: “What is a Planet?” 2007 NASA; IAU Definition of a Planet #Space #videos #NASA #News

more at http://scitech.quickfound.net/astro/planet_news.html On the qualifications for labeling a heavenly body as a “planet.” “This question has been pondered by many since the early

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Aurinkokunta (Solar System)

Aurinko nähtynä Aurinkokunnan eri kappaleilta SpaceEngine avaruussimulaattorissa. The Sun seen from different Solar System objects in the SpaceEngine space simulator. SpaceEngine http://en.spaceengine.org/ source [Prosperity]

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Why Isn’t Pluto a Planet Any More?

Dr. Robert Hurt explains why Pluto got… well… plutoed. source [Prosperity] cool #nasa videos- Why Isn’t Pluto a Planet Any More? #Space #videos #NASA

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