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ISS crew fails to resolve air leak issue in Russia's Zvezda Module with adhesive tape
by Staff Writers
Moscow (Sputnik) Oct 11, 2020

File illustration of Russia's Zvezda Module.

The crew of the International Space Station (ISS) has failed to fix the air leak in the Russian Zvezda by using adhesive tape in the module's section, where a crack is supposedly located, as the pressure continues to decline, according to conversations between the ISS crew and Earth, broadcast by NASA.

On Thursday, the Moscow Mission Control Center instructed Russian cosmonaut Ivan Vagner to use as much tape as possible in Zvezda's intermediate chamber, where the source of the leak is expected to be located.

On Friday morning, Vagner informed specialists at the Center that the pressure in the compartment had declined by 17 mm Hg down to 715 mm Hg.

A small air leak was detected in September 2019 on the ISS, and by August 2020, the leakage rate had increased five-fold - from 270 grams to 1.4 kilograms (9.5 ounces to 3 pounds) of air per day. The leak does not pose a risk to the crew.

Several tests were conducted - during which the crew members isolated themselves in parts of the station - that helped trace the leak to Zvezda, the main module on the station's Russian side. However, the exact spot of the leak was not found. Late last week, Vladimir Soloviev, the flight director for the Russian segment of the ISS, said that the crack was "crazy small," hardly 0.6-0.8 millimeters in size.

According to Sergey Krikalev, the executive director of Roscosmos for piloted programs, additional air volumes will have to be delivered to the station if the crew fails to seal the leak.

Russians Anatoly Ivanishin and Vagner, as well as American Christopher Cassidy, are currently working on the ISS.

Source: RIA Novosti

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ISS crew analyses dust movement to locate air leak in Russian Module
Moscow (Sputnik) Oct 07, 2020
The crew of the International Space Station (ISS) has located moving dust, which could indicate the point of an air leak that they have been searching for in the Russian Zvezda module, Anatoly Ivanishin, a Russian cosmonaut, said on Tuesday. "Together, we have reviewed the images from GoPro cameras. There is an interesting situation. These images show dust particles flying from left to right, and both of them move toward an area that is located on the starboard side", Ivanishin said, as broadcast ... read more

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