NASA Astronauts Spacewalk Outside the International Space Station on Jan. 20, 2020 NASAAstronauts Christina Koch and Jessica Meir Perform Spacewalk to Complete Battery Replacement - Video Sputnik InternationalWatch NASA astronauts spacewalk to replace space station batteries today Digital TrendsLIVE: Astronauts Christina Koch and Jessica Meir Perform Spacewalk to Complete Battery Replacement SputnikView full coverage on Google News