Fiction:Graviton Matter

Graviton Matter is an exotic form of matter comprised of charged gravitons. Aside from its unique gravitational and inter-dimensional properties, it behaves exactly like normal matter. It only exists naturally in exotic universes and the Inter-universal Void.

=Properties=

It has the similar nuclear, and chemical properties as normal matter, and can even combine with it on rare occasions. The primary differences are that they are unattached to any universe and can easily pass straight out. It also emits tachyonic neutrinos instead of photons, and generates gravitational fields instead of electromagnetic fields.

=Origins and Locations=

Some rare universes naturally developed graviton matter through their own bizarre laws of physics. Some escaped into the Inter-universal Void and formed clouds of the stuff. Some of the clouds drifted into other universes and others even developed into complex life forms out there. The Archeanis genus seems to be comprised of this graviton matter.