02/09/2026
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ESA astronaut Sophie Adenot and NASA astronaut Jessica Meir efficiently accomplished US EVA-99 at 21:29 CEST on Tuesday 1 September. It was Sophie’s third spacewalk, and the thirty third performed by a European astronaut.
Through the 6-hour, 49-minute spacewalk, Sophie and Jessica accomplished a number of upkeep duties, together with changing a spacecraft navigational help, getting ready a cosmic particle detector for future upgrades, putting in jumper cables to boost knowledge relay capabilities, and gathering samples for the MicroOrganisms experiment.
Sophie and Jessica switched their spacesuits to battery energy at 14:41 CEST, formally starting the extravehicular exercise (EVA), earlier than exiting the Quest airlock into the vacuum of area.
After leaving the airlock, Sophie and Jessica made their solution to separate work websites. Sophie translated to the ahead port of the Station’s Concord module, the place she changed a failed retroreflector, a tool utilized by the spacecraft as a navigational help throughout rendez-vous and docking operations. In the meantime, Jessica rode the Canadarm2 to the situation of a failed high-definition digital camera, which she changed with a spare.
Sophie then collected swab samples across the airlock and from her gloves for NASA’s MicroOrganisms experiment, which goals to find out whether or not microorganisms are launched by the station’s life-support vents and the way far they journey. She additionally relocated and put in energy and thermal jumpers to boost station energy and thermal system capabilities. In the meantime, Jessica labored on the Alpha Magnetic Spectrometer, starting preparation of a future improve, and relocated a transportable foot restreint in preparation for the following spacewalk.
Over three EVAs in simply 15 days, Sophie has now amassed 19 hours and 42 minutes of spacewalking time. EVA-99 was the 284th spacewalk in help of area station meeting, upkeep, and upgrades.