What’s wrong with Pluto?
With NASA’s New Horizons probe((Mission Website http://pluto.jhuapl.edu/)) approaching Pluto on a fly-by with closest approach on track for July 14th, I thought it a good time to discuss Pluto’s role in the dwarf planet controversy. Those of us of a certain age were brought up on a simple view of the Solar System: the Sun, the nine planets (Mercury through Pluto), a collection of moons around most of the planets, the asteroid belt (I thought of this as interplanetary gravel between Mars and Jupiter) and a bunch of comets intermittently being drawn in from the not terribly specific depths of…
