French astronaut takes third spacewalk outside ISS in all-female mission

French astronaut Sophie Adenot is taking her third spacewalk in two weeks and is leading rare all-female excursion outside ISS. The main mission is to replace a retroreflector, a device that align modules when they arrive towards the space station. Other maintenance operations are planned. The whole excursion is supposed to last between six and six and a half hours. It is only the sixth all-female excursion in space history.