Yet Mercury is in the same category as Jupiter...as though they are similar in any way. "Planet" is one of the few times science has decided to change something for the sole purpose of keeping the Earth important in its classification. I suppose we could not have 15 or 20 or 40 planets because that would be confusing...yet we have almost 1000 moons. It is ONLY because it is the Earth's classification...no other reason. It doesn't make anything easier or less confusing.

They could have easily made mercury, pluto, and a dozen others dwarf planets, Venus Earth and Mars terrestrial planets and the others gas planets... but that would demote Earth.

Weird left over geocentrism remaining in science like it's the 1300s.