You don’t have to wonder what is on Alan Stern’s mind. The planetary scientist and former NASA associate administrator is a relentless champion of all things Pluto; he is both the principal investigator and the prime mover behind the New Horizons mission, which will fly past Pluto and its moons this July 14. In advance of the encounter, Stern’s passion is building to a white heat, and he is letting everyone know it.
The excitement is infectious. Pluto is looking far more interesting than