Pluto
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8 Amazing Facts About the Dwarf Planet Pluto
For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from the sun. Since the discovery of more Pluto-sized dwarf planets, that outlook has changed. Fortunately, there’s far more to Pluto than its unique history among the other planets. Our solar system has gotten a little bit more…
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Why Is Pluto No Longer a Planet?
Summary Pluto isn’t alone—it’s part of the Kuiper Belt with possibly hundreds of other planet-sized objects. Because Pluto hasn’t achieved gravitational dominance in its region, the International Astronomical Union’s 2006 definition of a planet means it no longer qualifies. Pluto’s classification change remains controversial, with critics challenging the voting process and planetary enthusiasts struggling to let go of their long-lived…
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