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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Why Pluto went from Planet to Dwarf Planet

Why has Pluto has gone from being a planet to a dwarf planet? This video explains why as well as the definition of planets

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Does Planet 9 spell DOOM for our Solar System? Some Scientists say YES!

A scientist is claiming that Planet 9 the Celestial Object that has caused so much speculation but is yet to be found is going

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