Astronauts on the International Space Station temporarily move to a “safe haven” after detecting an air leak linked to cracks in the station’s transfer tunnel, multiple reports say. The issue involves the transfer tunnel that connects parts of the ISS used during crew and cargo operations. According to the reporting, the cracks have been present since 2019 and have been associated with leaks over time. The brief relocation is described as a precaution while crews manage the situation and confirm the leak source and status. Space agencies monitor air quality and pressure levels aboard the station, and they use contingency procedures if there are concerns about cabin atmosphere integrity. The reports characterize the action as temporary rather than indicative of a major failure, with astronauts remaining in appropriate habitats aboard the ISS as teams assess and address the problem.