QUESTION:
From what picture did you learn the most about Pluto?

ANSWER from Marc Buie on 26th May 1996:
Studying Pluto is much harder than you might think.  What does that mean?
Well, it means that we get lots of little clues to the puzzle which is
Pluto.  After we gather enough little clues, we begin to see what Pluto
is all about.  Have you ever tried to do a picture puzzle without using
the picture on the lid of the box?  It's pretty tough.  Your question is
a little like saying which one of the 1000 pieces told you the most about
the picture you were putting together.

That's just what it's like working on Pluto.  Those of us that study Pluto
try lots of experiments to help understand Pluto.  Each of these experiments
gives us one little piece of the bigger puzzle.  I'd say that we're finally
getting to the point of getting a reasonable idea of what Pluto is all about
but none of these individual pictures got us there all by itself.  Now,
if we could send a spacecraft to take some nice pictures up close, then I
might be able to answer your question differently.  I hope we get to do
this someday.  I'm sure Pluto will be a spectacular site when we do make it
there someday.