Expedition 61 Flight Engineers Christina Koch and Andrew Morgan of NASA concluded their spacewalk at the International Space Station at 2:23 p.m. EDT. During six-hour and 45-minute spacewalk, the two NASA astronauts continued the replacement of nickel-hydrogen batteries with newer, more powerful lithium-ion batteries on the far end of the station’s port truss. Astronauts also were able to accomplish …
Second of Five Power Upgrade Spacewalks Wraps Up







