Jerry Stuckle wrote in news:m36b58$oee$1@dont-
email.me:

Not many particles in a vacuum


Well, I can't argue. I just think that in some big reach of space where
there is no sudden boundary between high material density, and high
rarifaction, that occasionally some surprising exceptions to expected local
conditions might occur. (And there was a time when 'space weather' was an
unhead of concept).