What is the difference between art and science?

I think the best way to think of the differences between
art and science has to involve a discussion of
expectations.

In art, the emphasis is on the
subject's awareness/past
experiences/competence/sensibility.

In science,
we expect that the information is
discursive/objective.

However, there is a phase
during science research when there isn't enough information and the number of
possibilities are too great.  So, a scientist, who desires discursive/objective knowing,
has to use his artistic sensibility to narrow the number of possibilities. 

So in fact, depending on the type of science on
practices and how you define boundaries, art and science are the same or they are
separate. 

Goethe sought to nurture and develop
that subjective aspect of science, which he considered was constrained by natural laws. 
So in essence, the subjective is objective to the best trained.  It is only the
fallibility of the human condition that makes them different.