NASA astronauts perform first joint spacewalk since arriving last year

Two astronauts from NASA engaged in their first spacewalk together since their mission began last year on the International Space Station

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This story incorporates reporting from  Star Tribune, Indiatimes and Star Tribune.

NASA astronauts Sunita Williams and Barry “Butch” Wilmore conducted their first joint spacewalk since their arrival at the International Space Station (ISS) last year.

The spacewalk, which took place over several hours, involved various maintenance tasks. Key objectives included installing new hardware and upgrading existing systems to enhance the operational capabilities of the ISS. The activities carried out by Williams and Wilmore are crucial for ensuring the longevity and functionality of the space station, which serves as both a research laboratory and a staging ground for future expeditions.

Williams and Wilmore brought extensive experience in EVAs—or extravehicular activities—to this mission. Sunita Williams, an engineer and former U.S. Navy officer, previously conducted eight spacewalks during two earlier deployments to the ISS. Meanwhile, Butch Wilmore, a retired U.S. Navy captain, previously conducted four spacewalks.

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NASA’s spacewalks are essential for conducting repairs and upgrades essential to sustain life and experiments on the space station. With the ISS reported to accommodate a range of scientific research, these activities ensure both safety and efficiency. The station functions as a testing ground for technologies that could enable long-duration human travel to the Moon, Mars, and beyond.

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Spacewalks like the one executed by Williams and Wilmore are viewed as high-stakes operations, requiring meticulous planning and execution. For astronauts, these missions demonstrate the ultimate physical and technical demands of working in the vacuum of space, where they are tasked with installing or replacing complex equipment and systems.

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By conducting regular maintenance and upgrades, NASA ensures the smooth functioning and continued viability of the ISS, which remains at the heart of global space research efforts. As the space community looks toward more ambitious goals, including lunar bases and Mars exploration, the foundation laid by these spacewalks becomes increasingly important.

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Correction: An earlier version of this article misstated the number of spacewalks Sunita Williams and Barry Wilmore had previously conducted. Williams previously had eight spacewalks, not seven, and Wilmore had four spacewalks, not three.