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[b]ISS Expedition 64: U.S. Spacewalk 71[/b] NASA astronauts Kate Rubins and Victor Glover are scheduled to exit the International Space Station’s Quest airlock on Sunday (Feb. 28) for a spacewalk to begin assembling and installing modification kits required for upcoming solar array upgrades. The pair will set their spacesuits to battery power at about 6 a.m. EST (1100 GMT), signifying the start of the spacewalk, which is expected to last about six and a half hours. The current solar arrays are functioning well but have begun to show signs of degradation, as expected, as they were designed for a 15-year service life. The first pair of solar arrays were deployed in December 2000 and have been powering the station for more than 20 years. Later this year, the new solar arrays will be positioned in front of six of the current arrays, ultimately increasing the station’s total available power from 160 kilowatts to up to 215 kilowatts. Rubins will be extravehicular crew member 1 (EV 1) wearing red stripes. Glover will be extravehicular crew member 2 (EV 2) and wear a suit with no stripes. This spacewalk will be the third of Rubins’ career. Glover has conducted two spacewalks as part of this expedition, making the spacewalk on Feb. 28 the third in his career. This will be the 235th spacewalk in support of space station assembly.
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