But why isn't Pluto considered a planet anymore ... However, it soon became apparent that Pluto was not big enough to exert the kind of gravitational pull necessary to influence Uranus' orbit.

Today, when tens of thousands of minor planets have been discovered (most residing in an "asteroid belt" between Mars and Pluto), not even the meanest of teachers would require students to learn ...

So Pluto is a planet. Case closed. Well maybe not totally closed ... and we know the the phylogenetic origins. But why do we care more about phylogenetic origins than we care about location?

"Get over it. It's done. Just get over it." The StarTalk Radio host explains why it makes perfect sense to classify Pluto as a dwarf planet. Produced by Kamelia Angelova, Will Wei, & Alana ...

And today, over 12 years later, people still have strong opinions whenever you ask: Should Pluto be a planet again? - I'm not really sure ... depends on context. But why? Back in the early ...

The center of mass is located between Pluto and Charon because there's not a huge difference in their diameters and masses, so they balance out somewhat. Pluto has a mass of 1.3 x 10 22 kilograms ...