“The oxygen leak that has been going on for months could threaten the safety of the international space station.” Russia’s “news” said on the 11th that the international space station has been fighting against oxygen leakage since August, but it has not been completely solved. According to the report, the protracted issue has cast a shadow over the future of the international space station. Since August, instruments on the international space station have recorded significant air leaks, with more than 200 grams of oxygen leaking into space every day, the report said. < / P > < p > “this degree of leakage means that small holes with a diameter of about 0.1 mm appear on the space station. Although this situation is not serious and the international space station has oxygen supply, it will not seriously threaten the safety of astronauts, but this problem must also be solved immediately. ” But the point is that it’s not easy to find a hole in the space station that you can’t see with the naked eye. At present, only preliminary positioning of the leak occurred in the Russian “Star” service module, astronauts are trying to seal the leak hole. Russian ground flight control center has asked astronauts to use us sealant to block the suspected air leakage in the compartment of star service module, the Russian news agency said on the 11th. Russian astronaut Ivan Wagner blocked two leaks found in the service module on the 9th, but Wagner reported to the control center that the leakage was still continuing. The international space station (ISS) detected the problem of air leakage in September 2019, but it was not until August to September this year that the astronauts closed the doors of each cabin twice to check its tightness, and hid in the Russian cabin to avoid for several days. Later, it was found that the leakage point was roughly located in the Russian “Star” service module. Sergei krikaliev, executive director of the manned space program of Russia’s aerospace group, believes that if astronauts can’t eliminate the leak for a long time, more air needs to be delivered to the space station. < / P > < p > although the Russian space group said that the incident had no threat to the personnel of the international space station and would not affect the space station’s manned flight. However, the leakage problem of the international space station makes the outside world more and more worried about its future prospects. According to the news, the international space station has been operating for more than 15 years since its service in 1998. According to existing plans, it will be officially decommissioned in 2024. Previously, it has been suggested that the operation life of the international space station should be extended to 2030. “There seems to be no problem extending its life before the air leak. However, the air leakage incident has sounded an alarm bell to those who propose to extend the operation of the space station. This shows that the international space station is aging and may have problems at any time. The U.S. trump administration once wanted to stop funding the international space station in 2024 and turn it into a private enterprise. However, the profit prospects of the program are not optimistic. The current complex relationship between Russia and the United States will not allow the two countries to continue to strengthen cooperation in the field of international space station. It is unlikely that the two countries will jointly build a new space station in the future. At present, it is not realistic to build a new cabin for the international space station. The United States hopes to build a lunar orbital station, while Russia has no money to build a new “Star” module alone. At the same time, in the eyes of the international community, the importance of the international space station is steadily declining, which makes it more difficult for countries to find funds for the construction of new modules. The United States is worried that China may become the only country in the world to own the space station after its retirement. SpaceX beat blue origin and Northrop Grumman to win a $316 million air force contract