During U.S. spacewalk 99, NASA astronaut Jessica Meir and ESA (European Space Agency) astronaut Sophie Adenot will replace a retroreflector on the forward port of the space station’s Harmony module to support spacecraft navigation during rendezvous and docking operations.
September 1, 2026 7:00 am
U.S. Spacewalk 99
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| Date | September 1, 2026 |
| Time | 7:00 am |
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