During preparations for yesterday’s planned spacewalk by Roscosmos cosmonauts Sergey Prokopyev and Dmitri Petelin, ground teams noticed significant leaking of an unknown substance from the aft portion of the Soyuz MS-22 spacecraft docked to the Rassvet module on the International Space Station (ISS). The spacewalk was canceled, and ground teams in Moscow began evaluating the nature of the fluid and its potential impacts on the integrity of the Soyuz spacecraft.
The leak has since been determined to be coolant, and ground teams at Mission Control in Moscow continue to assess the leak from the aft end of the Soyuz MS-22 spacecraft.
Following the ongoing analysis, NASA and Roscosmos will continue to work together to determine the next course of action. The crew members aboard the space station are safe and were not in any danger during the leak.
The Soyuz MS-22 spacecraft transported NASA astronaut Frank Rubio and Roscosmos cosmonauts Sergey Prokopyev and Dmitri Petelin into space after launching on September 21 from the Baikonur Cosmodrome in Kazakhstan.
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