Today, European Space Agency (ESA) astronaut Luca Parmitano and NASA astronaut Andrew Morgan will begin the third of a series of complex spacewalks to service the Alpha Magnetic Spectrometer (AMS-02). The duo will install the new cooling pump system for the spectrometer’s detector tracker.

This spacewalk is the most important for AMS scientists at the AMS Payload Operations Control Centre (POCC) at CERN. Lead AMS engineer Zhan Zhang will work in tandem with the astronauts to install and put in operation the tracker’s cooling pump system.

CERN will go live at 14:15 CET from POCC, featuring commentary during the crucial stages of the spacewalk by AMS scientists Andrei Kounine, deputy spokesperson for AMS, Mercedes Paniccia  from the University of Geneva, and Giovanni Ambrosi from INFN Perugia.

Follow the live from @CERN on Facebook and YouTube and ask your questions using the hashtag #SpacewalkForAMS.