Space/Science — HabitableZone

Space/Science » in reply to re: Giant KBO discovered...2003UB313

How About A Clear Title Guys - 10th Planet Discovered & a Giant KBO With Satellite

We are going to have to clarify the definition of a planet. I'm sure we will be finding multiple Pluto+ sized worlds now. I firmly believe there will be a continuum in size. It would be stupid IMO to label anything beyond Neptune a KBO regardless of size. Pluto is no more strange compared to Earth than Jupiter is. We have the gas worlds, the terrestrial worlds, and the ice worlds. I kind of think we should even blend the large Moon's and planets in some other sort of classification system. Io is similar and as interesting if not more so as any other terrestrial planet. Europa is also basically a terrestrial class world. Ganeymede, Callisto, Titan, and Triton are ice worlds like Pluto.

Regards,
Mark

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