Luca Parmitano Works to Upgrade a Cosmic Particle Detector

Hello guys, We're here with some new information from NASA :
European Space Agency astronaut and current International Space Station Commander Luca Parmitano and ​crewmate Andrew Morgan (out of frame) performed the third spacewalk to repair the Alpha Magnetic Spectrometer.

from NASA https://ift.tt/2DQfO2M
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