Harry, to apply notability to anything just because it "exists" is rather human-centered, don't you think?  Notability implies comparison, so that one thing is notable over another thing or things.  So even my saying that "Earth is notable as being the only known safe harbor for life" is really poor usage of the word "notable".  Why is this notable?  To whom is it notable?  In improving an encyclopedia, one must carefully stick to facts as best as one can, and one must avoid anthropomorphisms as much as is humanly possible.   diss`cuss (^`.