Identity Crisis

We're here, old Pluto and I,
just as we've always been,
but we're being reinvented
from without, if not within.
Can a rose by any other name
still be a rose, my friend?
Can a planet demoted down to "dwarf"
still stay up there and spin?
And with my children off and grown
might I find myself again?
It's transition time, dear Pluto,
and we of stardust, solids, gas,
are left spinning in our orbits,
wondering how things changed so fast.