All that Matters?

Scientists behind the $2 billion Alpha Magnetic Spectrometer experiment reported new data pointing toward the potential detection of dark matter particles on Thursday. The AMS experiment is bolted onto the exterior of the International Space Station, and has been collecting cosmic-ray data since 2011. Researchers led by MIT physicist Sam Ting are watching for telltale patterns in the shifting balance between electrons and positrons, their antimatter equivalent, at higher and higher energies.

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