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CGP Grey
Is Pluto a Planet?
OnlinePluto’s classification as a planet has had a history of changes. Since 2006, per the International Astronomical Union’s planetary criteria, Pluto isn’t considered a planet because it hasn’t cleared the neighborhood around its orbit of other objects. However, it does … Continue reading →
How to Pronounce Uranus
Uranus - how do YOU pronounce it? This video by CGP Grey on YouTube is hilarious and educational; the history of how the 7th planet got its name is not something you'll find in middle and high school astronomy textbooks. … Continue reading →
Which Planet is the Closest? – CGP Grey
OnlineWhich planet is closest to Earth? The answer may surprise you!