How astronauts prepare the International Space Station for future docking and solar power

Space · Published 8 October 2026 Swipe more like this →

In short: Maintaining an orbiting laboratory requires precise extravehicular activities. From installing new docking ports for commercial spacecraft to preparing power channels for roll-out solar arrays, astronauts perform critical upgrades to ensure the station's continued evolution and scientific capability.

Extraterrestrial maintenance involves complex preparations for future hardware. For instance, NASA astronauts Barry Wilmore and Terry Virts were scheduled to prepare cables and communications gear for two new International Docking Adapters. These adapters, manufactured by Boeing, were slated for delivery via SpaceX flights to enable future crews launched from Florida to dock with the station. These upgrades facilitate seamless connections for upcoming missions. Such preparations ensure the station remains ready for diverse commercial arrivals.

Beyond docking infrastructure, astronauts manage the station's energy needs. In March 2026, NASA planned spacewalks 94 and 95 to prepare for the installation of International Space Station Roll-Out Solar Arrays (IROSA). This included preparing the 2A and 3B power channels. These specific operations were the first spacewalks of 2026 and the first for Expedition 74, though they were originally intended for January before being adjusted due to the early departure of the SpaceX Crew-11 mission. These tasks are essential for the station's power infrastructure. Such activities ensure the orbital laboratory remains fully operational.

These extravehicular activities (EVAs) are part of a massive ongoing effort; the planned March operations represented the 278th and 279th spacewalks supporting station assembly, maintenance, and upgrades. While these tasks are vital for the station's longevity, the station itself remains a highly visible target for observers on Earth, moving at approximately 17,500 mph (28,000 kph) and orbiting at an inclination of 51.6 degrees. Observers can track these movements using official mobile applications. Such tools provide real-time alerts and flyover schedules for enthusiasts.

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