The emergency prompted the astronauts to close the doors of the ISS module twice to check for pressure, and the astronauts and astronauts isolated themselves in the Russian part of the station for several days. Experts estimate that the size of the leak may be only 0.6-0.8 mm, which makes it very difficult or even impossible to find it.
But so far, astronauts on the international space station have found a way to detect the leak. They cut a lot of paper scraps and plastic strips, and according to the plan, they will deploy two motion cameras inside the star module, the source of the suspected leak. One of the cameras will be used to monitor the pressure gauge in real time to determine the rate of pressure drop in the cabin. The other is to observe the movement of paper scraps and plastic strips hanging around the module.
If all goes according to plan, air flow is expected to pull the trapped paper and plastic strips in the direction of the leak, while the free floating debris will accumulate near the leak so that the source of the leak can be detected by astronauts.
According to the data, the Star service module was built by Russia, which is the core module of the international space station. Star is 13 meters long, 30 meters wide, and weighs 19 tons. It costs 320 million dollars. The service module of Star consists of three sealed cabins, i.e. transition cabin, living cabin and working cabin, and an unsealed cabin for storing fuel tank, engine and communication antenna. There is a separate room for the astronauts to bathe and sleep. The Star is equipped with positioning and television communication system, which can guarantee the direct contact between the service module and the ground flight control center in Korolev of Russia and the ground flight control center of Houston in the United States. On July 12, 2000, the Star was launched into space by a proton-k rocket; on July 26, 2000, the Star service module docked with the International Space Station consortium.
Source: Nanfang + editor in charge: Zhang Zutao_ NT5054