The Alpha Magnetic Spectrometer
Other experiments are looking for dark matter from space. The Alpha Magnetic Spectrometer, launched from Earth in 2011, is an experiment that’s been measuring high-energy particles from onboard the International Space Station. It’s one of a few space-based experiments that seems to observe an excess of positrons, the electron’s antimatter partner. It may also verify a strange drop-off in high-energy particles observed by a Chinese satellite called DAMPE. These observations may provide more clues into the true nature of dark matter.
