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September 11, 2012
ISS028-E-016137 (12 July 2011) --- This picture, photographed by NASA astronaut Ron Garan during the spacewalk conducted on July 12, 2011, shows the International Space Station with space shuttle Atlantis docked at right and a Russian Soyuz docked to Pirs, at upper left. In the lower right foreground is the Alpha Magnetic Spectrometer (AMS) experiment installed during the STS-134 mission. AMS is a state-of-the-art particle physics detector designed to use the unique environment of space to advance knowledge of the universe and lead to the understanding of the universe's origin by searching for antimatter and dark matter, and measuring cosmic rays.

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