NASA issues ISS warning as mystery ‘leak’ forces Russia to abort spacewalk mission

“We do not know what the source of the stream of particles is. At this point there are discussions that are ongoing, first to make sure that the safety of the two spacewalkers is not compromised in any way. And then to determine what impact this might have, if any, on the integrity of the Soyuz vehicle.”

Currently, there are five other spacecrafts parked at the orbital lab- two SpaceX capsules (a Crew Dragon and Cargo Dragon), a Northrop Grumman Cygnus space freighter and two Russian resupply ships, Progress 81 and Progress 82.

The ISS spans 357 feet or 108 meters from end-to-end, about the length of a US football field, orbiting 250 miles above the Earth. The research station has been continuously occupied since 2000, is operated by a partnership led by the US and Russia, and includes Canada, Japan and 11 European countries.

Article source: https://www.express.co.uk/news/science/1709796/iss-mysterious-leak-russia-spacewalk-mission-roscosmos-nasa