Leaks are affecting a key part of the International Space Station. NASA and Russia’s space agency, Roscosmos, are not seeing eye to eye about the level of risk.

NASA worries that a leak aboard the International Space Station could lead to a catastrophic failure if not fixed in time — but not everyone agrees.

NASA and Russian officials disagree on the cause of a worsening leak on the ISS, raising safety concerns for astronauts.

In September, NASA's inspector general noted in a report that new cracks and leaks affecting the Russian segment of the aging International Space Station continued to be a "top safety risk." The leaks,

The agency’s top medical official was responding to rumors that Suni Williams had lost an unusual amount of weight during an extended stay in orbit.

A recent report out last month from NASA’s Office of the Inspector General highlighted some of the big challenges to keeping the ISS flying safely until 2030.

The multinational effort to assemble the station was a huge success, and the ISS has avoided any major incidents thanks to careful management and maintenance. But it is getting old, and the cracks are beginning to show—literally.

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