Astronauts Complete Spacewalk to Remove Failed Antenna

NASA astronauts Anil Menon and Sophie Adenot concluded a six-hour spacewalk, successfully removing a malfunctioning antenna from the International Space Station but unable to install a replacement due to time constraints.

NASA’s Anil Menon and European Space Agency astronaut Sophie Adenot successfully completed a spacewalk on August 18, 2026, lasting six hours and 23 minutes. The mission, which concluded at 2:52 p.m. EDT, marked the 282nd extravehicular activity (EVA) focused on assembly and maintenance of the International Space Station (ISS). This was the fifth EVA of the year, with Menon participating for the second time and Adenot making her debut as the first French woman to walk in space.

Since the assembly of the ISS began in 1998, the total EVA time has now reached 74 days, 10 hours, and 44 minutes. Menon has accumulated 12 hours and 50 minutes of EVA time in his career.

Mission Objectives and Challenges

The primary objective of this spacewalk was to remove a failed space-to-ground antenna. While Menon and Adenot successfully detached the malfunctioning unit, the operation faced delays. The astronauts encountered difficulties while freeing tight power and data cables, installing locking pins in the antenna’s gimbal assembly, and unbolting it from its boom. Despite their efforts, the task took longer than anticipated, requiring considerable physical exertion.

Decisions Made During the Spacewalk

Ultimately, flight controllers determined that there was insufficient time for the astronauts to relocate the failed antenna to its designated storage area or to install a spare antenna. Consequently, the failed unit was secured near its boom, where it will remain indefinitely, while the replacement antenna stays bolted to a storage platform.

The ISS is equipped with two antennas, although only one is necessary for standard operations. However, having both functional antennas is crucial for redundancy in this critical system.

Future Plans

A subsequent spacewalk is scheduled for the following Tuesday, during which flight controllers will evaluate whether to prioritize the installation of the replacement antenna or to proceed with other planned tasks. The decision will hinge on the operational needs of the ISS and the astronauts’ workload.

This article was produced by NeonPulse.today using human and AI-assisted editorial processes, based on publicly available information. Content may be edited for clarity and style.

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