Interstellar object ‘Oumuamua is likely a piece of a Pluto-like planet

Water on Mars May Be Trapped in the Planet's Crust, Not Lost to Space

Scientists determine the origin of extra-solar object 'Oumuamua - it is likely a piece of a Pluto-like planet from another solar system. Until now, we've had no way to know if other solar systems have Pluto-like planets, but now we have seen a chunk of one pass by Earth.

Yes, Pluto Is A Planet Says NASA Scientist At The Site Of Its Discovery 91 Years Ago This Week