Preparing for a Spacewalk: ISS Crew Gears Up for Communications Gear Removal and Microbial Search

2025-01-22

The International Space Station (ISS) is buzzing with activity as the Expedition 72 crew prepares for an upcoming spacewalk, conducts advanced scientific research, and manages daily maintenance tasks. This week, the crew has been hard at work ensuring everything is in place for a critical spacewalk scheduled for January 30, where they will remove outdated communications equipment and search for microbial life on the station’s exterior.

Commander Suni Williams and Flight Engineer Butch Wilmore are set to lead the spacewalk, which is expected to last approximately six and a half hours. The duo spent Wednesday reviewing procedures, servicing their spacesuit helmets, and checking the functionality of their SAFER (Simplified Aid for EVA Rescue) units. These jetpack-like devices are crucial for ensuring astronauts can safely return to the station if they become untethered during a spacewalk.

NASA Flight Engineers Nick Hague and Don Pettit will play a supporting role, operating the Canadarm2 robotic arm to assist Williams and Wilmore in removing the radio frequency group antenna assembly. Hague will take the lead in maneuvering the robotic arm, while Pettit will serve as backup. Both will also help the spacewalkers suit up, guide them in and out of the Quest airlock, and monitor their activities throughout the mission.

Meanwhile, the crew has been balancing their spacewalk preparations with other responsibilities. At the end of their shifts, the four NASA astronauts regrouped in the Harmony module to clean up and reorganize cargo. They disposed of trash, relocated hardware to create more space, and conducted a photographic inspection of the module for further analysis on Earth.

On the Roscosmos segment of the ISS, Flight Engineer Aleksandr Gorbunov focused on Earth observation studies, using a camera equipped with a spectrometer to capture images of Earth’s surface in various wavelengths. This data will help scientists analyze the effects of natural disasters. Gorbunov also participated in a piloting study, wearing a sensor-packed cap to record his reactions as he practiced spacecraft and robotic piloting techniques that could be used on future planetary missions.

Cosmonaut Alexey Ovchinin spent his day servicing audio and ventilation systems in the Zvezda and Zarya modules before exploring 3D printing tools in microgravity. Flight Engineer Ivan Vagner, on the other hand, activated video equipment, uninstalled electronics hardware, and completed a questionnaire about his experiences communicating with international crews and mission controllers worldwide.

The ISS continues to serve as a hub for groundbreaking research and international collaboration. To stay updated on the latest station activities, follow the space station blog and NASA’s social media channels on X (@space_station and @ISS_Research), Facebook, and Instagram. For weekly updates from NASA, subscribe at www.nasa.gov/subscribe.

What Undercode Says:

The upcoming spacewalk aboard the ISS highlights the intricate planning and teamwork required to maintain and advance humanity’s presence in space. This mission is not just about removing outdated equipment; it’s a testament to the station’s role as a platform for scientific discovery and technological innovation.

The removal of the radio frequency group antenna assembly is a routine yet critical task. Over time, equipment on the ISS becomes obsolete or worn out, and replacing it ensures the station remains operational for future missions. The search for microbes on the station’s exterior is equally fascinating. Understanding how microorganisms survive in the harsh environment of space could provide insights into the potential for life elsewhere in the universe and inform protocols for planetary exploration.

The use of the Canadarm2 robotic arm during the spacewalk underscores the importance of robotics in space operations. This sophisticated tool allows astronauts to perform tasks that would otherwise be too risky or time-consuming. The collaboration between human astronauts and robotic systems is a model for future missions, particularly those to the Moon and Mars, where robotics will play an even more significant role.

The scientific experiments conducted on the Roscosmos segment of the ISS also deserve attention. Gorbunov’s Earth observation studies contribute to our understanding of natural disasters, which is increasingly important in the context of climate change. His piloting experiments, meanwhile, are paving the way for future missions that will require advanced spacecraft and robotic control systems.

The crew’s daily maintenance tasks, though less glamorous, are essential for the station’s smooth operation. From reorganizing cargo to servicing life support systems, these activities ensure the ISS remains a safe and functional environment for its inhabitants.

Finally, the international nature of the ISS crew highlights the power of collaboration in space exploration. With astronauts and cosmonauts from different countries working together, the station serves as a symbol of what humanity can achieve when it sets aside geopolitical differences and focuses on shared goals.

As we look to the future, the lessons learned from missions like this will be invaluable. Whether it’s developing new technologies, understanding the effects of space on living organisms, or fostering international cooperation, the ISS continues to push the boundaries of what’s possible. This spacewalk is just one small step in that ongoing journey, but it’s a reminder of how far we’ve come—and how much further we can go.