Mirror particles form new matter!

Scientists have successfully created a new molecule: Di-positronium, by merging electrons with antimatter positrons:

BBC Article

Fragile particles rarely seen in our Universe have been merged with ordinary electrons to make a new form of matter.

It also seems this new discovery has bought us closer to creating gamma-ray lasers. And of course the military is very interested in them:

"The difference in the power available from a gamma-ray laser compared to a normal laser is the same as the difference between a nuclear explosion and a chemical explosion,"

Saying that though Gamma-ray lasers can be used in Nuclear Fusion, a huge step on from our current Fission technology. Exciting stuff.