Why is Pluto not a Planet? What are dwarf planets?
Before 2006, defining what counted as a planet was more of a loose concept than a concrete rule. Since ancient times, humans have observed these bright, wandering objects in the sky. The term ‘planet’ itself originates from the Greek for ‘Wandering Star,’ used to describe these distinct celestial bodies. We knew about Mercury, Venus, Mars, Jupiter, and Saturn for centuries. With better…
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