Phil Fraering pgf@AUTO wrote in message ...

Looking at Pluto is an easy way of looking at a comet's _core_, without
having to dig through hundreds of meters of baked-over crust on the surface.

Going to Pluto is anything but easy. The Deep Impact mission is going
to blast into a comet to study the interior, and it costs half as much
as the Pluto-Kuiper mission.