Perhaps the most exciting news this week was the detection of a plethora of positrons in the cosmic ray flux that may be due to the annihilation of dark matter. The positrons (the antimatter equivalent of the humble electron) were detected in the particle streams of the cosmic rays by the international Alpha Magnetic Spectrometer installed on the International Space Station.
In January, I attended a lecture on dark matter, which I posted a recap of. Dark matter is "adjacent" to regular matter, but only interacts with it gravitationally- it is not detectable on the electromagnetic spectrum. There are some theoretical models for dark matter, using such whimsical terms as WIMPs and MACHOs and axions, but nothing substantial is known about the nature of dark matter. Hopefully, the discovery of a stream of positrons amid the general particle flow of the universe represents a glimmer of light shed on dark matter. If this heralds a New Dark Age (hat tip to Smut Clyde, it will be a glorious one.
Postscript: While these results from the International Space Station and CERN represent the best of humanity, international cooperation in the name of scientific inquiry and the furtherance of human knowledge, I have a sinking feeling that more money will be spent dealing with the bellicose posturing of a schlubby schmuck with a bad haircut than was spent on this project.