[U.S. and Canadian astronauts completed spacewalk to upgrade International Space Station power system] On November 6th, NASA announced on the 5th that two astronauts completed a spacewalk mission of about 7 hours that day to install the last set of coiled solar arrays for the International Space Station, marking the completion of the space station power system upgrade. The two people who emerged from the capsule were NASA astronaut Anil Menon and Canadian Space Agency astronaut Joshua Kutrick. The spacewalk started at 8:36 U.S. Eastern Time on the 5th (21:36 Beijing time on the 5th) and lasted about 7 hours. The two installed the eighth and final set of coiled solar arrays in the 3B power channel of the International Space Station. According to reports, the upgrade of the International Space Station power system will be launched in February 2021. NASA said that after all these solar cells are put into use, they are expected to increase the power generation capacity of the International Space Station from 160 kilowatts to approximately 215 kilowatts.