WASHINGTON — NASA and Roscosmos continue to disagree on the cause and severity of an air leak in the Russian segment of the International Space Station, one that NASA worries could lead to a “catastrophic failure” of part of a Russian module. That disagreement was brought to light during a brief meeting of NASA’s ISS Advisory Committee Nov. 13, which recounted a meeting of that committee with its Roscosmos counterpart in Moscow in September to discuss issues with the station. The major concern has been a small but persistent leak…
