As of 2020, how many planets, including dwarf planets, are known to exist in the solar system?
Correct answer: 13

Player #22397885
Pluto I guess was relegated or downgraded for reason best known to scientist.

Uninitialized
M3∆, planet x. also what about the secret second sun, A brown dwarf we actually have a twin star system

M3∆
what about nubulas;the blue planet that orbits the sun every 364 years or something to that extent?

ProudCanadian
When and why was Pluto taken off the list of planets?