Irreparable failures may begin literally a day after systems are exhausted
High above the Earth, the International Space Station—a symbol of what nations can build together when they choose cooperation over conflict—is quietly succumbing to the weight of time. Russia's chief engineer at Energia has warned that nearly 80 percent of the Russian segment's systems have outlived their designed purpose, and fresh cracks in the Zarya module, the station's oldest cornerstone, are widening with each passing orbit. What was conceived as a 15-year endeavor has stretched past two decades, and the machinery that made that extension possible is now signaling, in the language of metal fatigue and failing seals, that borrowed time has limits.
- New cracks discovered in the Zarya module—the structural foundation of the Russian segment—are expected to spread, raising the possibility of catastrophic integrity failure in orbit.
- 80% of Russian onboard systems have already exceeded their operational lifespans, and Energia has warned that an avalanche of irreparable failures could begin cascading as early as 2025.
- The station has already shown it is not merely aging on paper: in July, a software glitch caused Nauka module thrusters to reignite after docking, spinning the entire complex out of orientation with seven crew members aboard.
- A separate air leak detected in the Zvezda service module—where crew members live—underscores that these are not hypothetical risks but active, compounding vulnerabilities.
- Russia has committed to the ISS partnership through 2024 and is open to extension, but whether the hardware can hold together long enough to make that commitment meaningful remains an open question.
Vladimir Solovyov, chief engineer at Energia—the Russian firm responsible for the station's Russian segment—delivered a stark warning to state media in early September: the ISS is approaching a crisis point. Nearly 80 percent of systems on the Russian side have already outlived their operational lifespans, and cosmonauts have found new cracks in the Zarya module, the oldest and most foundational piece of the station. Those fissures, Solovyov cautioned, are expected to widen over time.
The warning was not without precedent. Energia had previously forecast an "avalanche" of equipment failures hitting the station by 2025—a projection that now reads less like a worst-case scenario and more like a scheduled arrival. Once the aging systems finally give out, Solovyov said, irreparable failures could follow almost immediately, compounding in an environment where repair options are brutally limited.
The station had already offered previews of what that future might look like. In July, a software glitch caused thrusters on the newly docked Nauka module to reignite unexpectedly, pitching the entire orbital complex out of its normal orientation with seven crew members aboard. That same month, an air leak was detected in the Zvezda service module, the crew's primary living quarters. These were not theoretical warnings—they were live failures on a structure never designed to last this long.
The ISS launched in 1998 as a collaboration between Russia, the United States, Canada, Japan, and European partners, with a 15-year operational window built into its design. More than two decades on, it remains occupied and scientifically active, but running on hardware that has long since exceeded its intended life. Roscosmos has pledged to remain in the partnership through 2024 and has signaled willingness to extend further—but whether the aging structure can hold together long enough to make that extension meaningful is now the central, urgent question.
The International Space Station is showing its age in ways that worry the people who built it. Vladimir Solovyov, chief engineer at Energia—the Russian company that designed and maintains the station's Russian segment—told state media in early September that the outpost faces a looming crisis of mechanical failure. Nearly 80 percent of the systems on the Russian side have already outlived their operational lifespan. More immediately troubling: cosmonauts have discovered new cracks in the Zarya module, the oldest and foundational piece of the station, and those fissures are expected to widen as time passes.
Solovyov's warning carried an ominous edge. Once the aging systems finally give out completely, he said, irreparable failures could begin almost immediately—a cascade of breakdowns that might prove impossible to repair in the hostile environment of orbit. This wasn't idle speculation. Energia had previously cautioned that an "avalanche" of equipment failures could hit the station by 2025, a prediction that now seemed less like worst-case scenario and more like trajectory.
The station had already given signs of strain. In July, a software glitch caused thrusters on the Nauka research module to reignite hours after docking, pitching the entire orbital complex out of its normal orientation with seven crew members aboard. That same month, Russian officials reported an air leak in the Zvezda service module, which houses the crew's living quarters. These weren't theoretical problems—they were happening now, aboard an aging structure that was never meant to last this long.
The International Space Station began as an ambitious collaboration in 1998, a joint project between Russia, the United States, Canada, Japan, and several European nations. It was designed with a 15-year operational window in mind. More than two decades later, it was still up there, still occupied, still conducting research—but running on systems that had long since exceeded their intended service life. The Russian segment, in particular, was showing the strain of that extended mission.
Roscosmos, Russia's space agency, had committed to remaining part of the partnership through 2024 and signaled openness to extending that commitment further. But Solovyov's warnings suggested that extension might depend on whether the aging hardware could hold together long enough to make it worthwhile. The cracks in Zarya were not a metaphor. They were physical damage to the structure itself, damage that would only worsen. The question now was whether the station could be kept operational long enough to plan for what comes next, or whether the cascading failures Energia had warned about would force a reckoning sooner than anyone wanted.
Citações Notáveis
Superficial fissures have been found in some places on the Zarya module. This is bad and suggests that the fissures will begin to spread over time.— Vladimir Solovyov, chief engineer, Energia
Literally a day after the systems are fully exhausted, irreparable failures may begin.— Vladimir Solovyov, chief engineer, Energia
A Conversa do Hearth Outra perspectiva sobre a história
When Solovyov says 80 percent of systems have expired, what does that actually mean? Are they broken, or just past their design life?
They're past their design life—meaning they were built to work for a certain number of years, and that window has closed. Some may still function, but they're operating on borrowed time. The risk is that once they fail, there's no replacement waiting in orbit.
And the cracks in Zarya—how serious is that?
Serious enough that engineers expect them to spread. In the vacuum of space, with temperature swings and structural stress, small fissures don't stay small. It's the kind of damage you can't just patch from the inside.
Why hasn't Russia just replaced these systems?
Because you can't easily replace systems on a space station. You'd need to send up new modules, dock them, transfer equipment—it's enormously expensive and complex. It's cheaper to keep the old ones running as long as possible.
So what happens if everything fails at once?
That's the "avalanche" Solovyov mentioned. If systems start cascading into failure, you might not be able to stabilize the station. You could lose crew quarters, life support, propulsion—any of those becomes catastrophic.
Is the station in danger of falling?
Not immediately. But if the Russian segment becomes unreliable, it affects the entire station's stability and operations. The partnership depends on all segments working together.
What's the timeline?
Solovyov warned about 2025 as a potential breaking point. Russia says it's committed through 2024. So we're looking at the next few years as critical.