In modern parlance, Pluto “is what it is”. The semantic lexicon of astrophysics does need to be redefined with expansion of the knowledge base, of course, but the objects being described don’t change a bit. Continue reading →

Try this “it’s not a mountain” argument with several generations of New England skiers. They’ll tell you the same thing we’re telling the IAU. It’s a mountain, just like Pluto’s a planet. No amount of academic internecine warfare is going to change that. Continue reading →