3 ms·If true, would this be the smoothest planet in the solar system?by xingyzt 6y agoIf true, would this be the smoothest planet in the solar system?Sharlin 6y agoI guess that technically the IAU definition of planethood would not exclude a primordial black hole, but I doubt that's the intended interpretation.m_mueller 6y agosomeone, somewhere who sat in the planet definition committee: "seriously? again? what else didn't we think about...."