NASA and Roscosmos Address Increased Leak Rate in Zvezda Module on ISS
By
Mark A. Garcia
Crackling crust, pillowy middle. The kind of bagel that earns a second cup of coffee.
Summary
NASA and Roscosmos are monitoring and repairing cracks in the Zvezda service module's transfer tunnel (PrK) on the International Space Station, which have been causing small atmosphere leaks since 2019. In early June 2024, during Progress 95 cargo operations, Roscosmos detected an increased leak rate of two pounds per day and identified a new suspected leak area. Both agencies continue collaborative efforts to identify the root cause while Roscosmos applies sealants and mitigation measures.
Key quotes
· 3 pulledThe Zvezda service module's transfer tunnel, known as the PrK, on the International Space Station has experienced cracks since 2019 that have resulted in small atmosphere leaks.
Roscosmos noted an increase of the previous leak rate to two pounds per day and identified new suspected leak areas.
NASA and Roscosmos have worked together to identify the root cause while Roscosmos has been applying leak mitigation measures, including temporary and permanent sealants.
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