The Alpha Magnetic Spectrometer (AMS) is a cosmic particle detector attached to the International Space Station's Starboard Truss-3 structure.
iss061e065188 (Dec. 2, 2019) — The Alpha Magnetic Spectrometer (AMS) is a cosmic particle detector attached to the International Space Station’s Starboard Truss-3 structure and undergoing repairs to its thermal pump system during a series of spacewalks with astronauts Andrew Morgan and Luca Parmitano.