Astronaut Christina Koch assists spacewalkers Nick Hague and Anne McClain

iss059e001434 (March 22, 2019) --- NASA astronaut Christina Koch (center) assists spacewalkers Nick Hague (left) and Anne McClain in their U.S. spacesuits shortly before they begin the first spacewalk of their careers. Hague and McClain would work outside in the vacuum of space for six hours and 39 minutes to upgrade the International Space Station's power storage capacity.