NASA Astronauts Conduct US Spacewalk 99 Outside Space Station
September 1, 2026
EpochTV Live
NASA astronaut Jessica Meir and ESA astronaut Sophie Adenot conduct U.S. Spacewalk 99 on Sept. 1 outside the International Space Station to replace a retroreflector that supports spacecraft navigation during rendezvous and docking operations. Live coverage begins at 7 a.m. ET.
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