Spaceborne dark matter hunter sees telltale antimatter

A dark matter-hunting telescope perched on the International Space Station has spotted millions of particles of antimatter. It could be the first clear evidence of dark matter particles smashing into each other – or something much more mundane.

“It’s an indication, but by no means is it a proof” of dark matter, says Nobel laureate Samuel Ting of the Massachusetts Institute of Technology, the principle investigator for the Alpha Magnetic Spectrometer experiment.