Pluto was discovered today in 1930. And it was our solar system's distant ninth planet ... until it wasn't. It was downgraded to a dwarf planet in 2006 (but remains a planet in our ❤️). Learn more about dwarf plants from our Vahe Peroomian ⬇️ #PlutoDay t.co/JXyuw8Nkzh t.co/8mrW6CwNHG