Russian cosmonauts to track air leaks with vibration sensors

Vladimir Solovyov said the "scientific research" would seek to identify "vibration nodes" to see if they coincide with welding seams. He told Sputnik earlier that persistent air leaks were a likely result of welding errors made inside the Zarya and Zvezda modules three decades ago.

Cosmonauts were first alerted to a tiny crack inside the Zvezda module at the ISS in 2019 when a drop in air pressure was recorded. Two cracks have been identified and sealed off but air is still escaping the space outpost, albeit at a slower pace. The leak poses no danger to the crew.

Source: RIA Novosti