Commander Luca Parmitano assists spacewalkers Andrew Morgan and Christina Koch

iss061e003210 (Oct. 6, 2019) --- Expedition 61 Commander Luca Parmitano of ESA (European Space Agency) assists NASA astronauts Andrew Morgan (left) and Christina Koch (right) in their U.S. spacesuits. The NASA spacewalkers would go on to conduct a seven hour and one minute spacewalk to begin the latest round of upgrading the station's large nickel-hydrogen batteries with newer, more powerful lithium-ion batteries.