Two female astronauts complete 6th all-female spacewalk, upgrade ISS systems

For the sixth time in the history of human spaceflight, two women stepped beyond the airlock of the International Space Station and spent nearly seven hours maintaining the machinery that keeps humanity's foothold in orbit alive. Their work — replacing a navigation camera, installing a docking aid, servicing a cosmic-ray instrument — was unglamorous and essential, the kind that does not announce itself but quietly holds everything else together. More than a year had passed since the last all-female spacewalk, a reminder that such moments still require rare alignment of training, scheduling, an