mcgillianaire | Pluto relegated to the underworld

The International Astronomical Union has redefined our solar system by declaring Pluto to be a dwarf planet. As a result, there are now only 8 true planets & 3 newly-created dwarf planets.

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I agree that Pluto shouldn't be a planet, but I'll trust my astro friend when he says how influential various objects are in planetary orbits.

I'm not saying it's not influential, I'm just saying that that's not good criteria for being a planet. I'm in physics as well, by the way.