What if Earth became Half-Pluto? No Ways! Pluto is Not Even a Planet! Oh AumSum! Firstly, Pluto is smaller than the Moon, if Earth became Half-Pluto, Humans on Earth's Pluto-part may have to live in extremely small houses! Secondly, Pluto is considered a dwarf planet, if Earth became Half-Pluto, other planets may start laughing at Earth! Lastly, 1 year on Pluto is 248 earth years long, if Earth became Half-Pluto, Humans on Earth's Pluto-part may never be able to celebrate their birthdays.