Zvezda service module

The Zvezda service module is a key component of the Russian segment of the International Space Station (ISS). It recently became newsworthy due to a worsening air leak in its transfer tunnel, known as PrK. This leak prompted an evacuation alert for some astronauts, who were instructed to shelter in a transport capsule as a precautionary measure. Russian cosmonauts attempted repairs on the leak. While the immediate evacuation alert has been lifted and astronauts have resumed normal duties, the incident highlights ongoing maintenance challenges and the critical nature of the Zvezda module for the station's integrity and the safety of its crew. The module's functionality is vital for the Russian segment's operations and the overall mission of the ISS.