What, the "amazing" revelation that particles exist in space, even
though for all practicle purposes it can be treated as a vacuum?

The amazing thing is that space cannot exist without
those particles which provide the very structure of
space itself. It seems that space is a property of
matter rather than vice versa.
--
73, Cecil http://www.w5dxp.com

Theoretical absolutes don't happen as often as in the space in the head.
You can't convince me that gravity or magnetic fields really require a media
to travel through. Assuming there is one would be a crutch. Didn't stop us
from getting people to the moon and back.