It was only in 1969 (nice) that fungi officially became its own separate kingdom.
Pluto is a planet, though. It’s officially considered a “dwarf” planet, and as “dwarf” is just an adjective, it’s still a planet (just like a short person is still a person). The other 8 new dwarf planets (Ceres, Eris, Makemake, Haumea, Gonggong, Quaoar, Orcus, and Sedna) are also all planets - so we have 17 planets total.
Seriously, though. By the same 3 criteria that Pluto isn’t a planet, Mercury isn’t (as it isn’t in hydrostatic equilibrium).
I mean Pluto IS a planet i guess what people mean when they say pluto is not a planet is that it is no longer part of our solar system
The solar system is larger than you think and extends quite a bit beyond pluto
https://science.nasa.gov/learning-resources/how-big-is-the-solar-system/
