Particle physics experiment, carried on STS-91, which used a cross-bay carrier containing a 3,000 kg magnet and scintillator detectors used in a search for antiprotons and antinuclei in cosmic rays. A later version of AMS was delivered to and installed on the International Space Station on STS-134.
AKA: AMS. Status: Operational 1998. First Launch: 1998-06-02. Last Launch: 1998-06-02. Number: 1 .