Sense Sonnet - Chiller

Dark Matter

Tiz the question - what's the matter?
Most of it's dark apparently,
So chats scientific chatter.
If so, what does dark matter be?
Tiz invisible cosmic stuff
Five times the mass of matter seen.
So far we just don't know enough,
But keep on looking 'twixt and 'tween,
Especially dwarf galaxies,
Where some gamma rays have been found.
Finders are hoping, pretty please,
Dark matter may be close around.

When it's matter over my mind,
I am oft in the dark, I find.