Dark Matter detection : potential breakthrough

3D map of the large-scale distribution of dark matter
(Source : Wikipedia)

The Alpha Magnetic Spectrometer (AMS), based on the International Space Station, is designed to  detect and analysis the flux of cosmic rays to great precision. The AMS team today announced the observation of an excess of positrons in the cosmic ray flux, possibly signalling the first detection of dark matter. 

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Thanks to IFLS for the link.