Watch 2 astronauts replace failed ISS antenna during spacewalk today

image via Space.com

August 25, 2026, 4:01 AM

• •The spacewalk's primary objective is to replace a failed ISS space-to-ground antenna used for high-speed communications with Mission Control.
• •Anil Menon is designated crewmember 1 for the EVA, and Sophie Adenot is crewmember 2.
• •Menon and Adenot removed the failed antenna during an Aug. 18 spacewalk but did not have enough time to install the replacement.
• •NASA said the Aug. 25 EVA is expected to last 6.5 hours and would be the 283rd spacewalk in ISS history.
• •If schedule allows, the astronauts will also try to replace a retroreflector on the station's Harmony module.

NASA astronaut Anil Menon and ESA astronaut Sophie Adenot are scheduled to perform a spacewalk outside the International Space Station on Aug. 25. Their main task is to install a replacement space-to-ground antenna after removing the failed unit during an earlier EVA on Aug. 18. NASA said the excursion is expected to begin around 8:35 a.m. EDT and last about 6.5 hours, with live coverage starting at 7:00 a.m. EDT. If time permits, the pair may also replace a retroreflector on the Harmony module to improve navigation data for visiting spacecraft.

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