Gamma Ray Satellite may have found dark matter

Here's another great post that describes a recent discovery of what may be dark matter, which makes up 20% of our universe (regular matter is only 4%).

The excess gamma rays could possibly be coming from a hypothesized dark matter called Weakly Interacting Massive Particles (WIMPs), colliding with one another and annihilating themselves into pure energy.

Fermi may have spotted dark matter.