SPACE JENGA: About That Russian Air Leak on the International Space Station… “It’s official: A persistent air leak in the Zvezda module of the International Space Station forced Russia to permanently seal off the Transfer Chamber (PrK) to one of the structure’s few docking ports. In the movie version, this is when Tom Hanks would click on his radio to announce, ‘Houston, we had a problem. Now we just have a complication. Or two.'”