On October 16, the thruster of the Russian Soyuz spacecraft (ms-18) accidentally started on Friday local time, resulting in the International Space Station tilting out of control again, which is the second similar event in less than three months < p > the spacecraft is scheduled to return Russian astronaut Oleg novitskiy, film director Klim shipenko and actress Yulia peresild to Earth early Sunday morning (October 17) Eastern time. In the test before returning home, Russian flight controllers started the ship's thrusters at 5:02 a.m. on Friday < p > figure: on September 28, 2021, the Russian Soyuz spacecraft ms-18 docked with the country's noca multifunctional laboratory module after repositioning at the International Space Station < / P > < p > NASA officials wrote in the update: "After the end of the test window, the thrusters continued to start unexpectedly, resulting in the loss of attitude control of the international space station at 5:13 a.m. within 30 minutes, the flight controllers regained control of the attitude of the space station and have now returned to stability. The crew remained awake at the time of the incident and did not encounter any danger." < / P > < p > Vladimir solovyov, flight director of the Russian segment of the International Space Station It is confirmed that the orbital laboratory briefly deviated from the normal orientation by 57 degrees. The space station managers do not know the cause of the anomaly. NASA officials wrote in the update that NASA and Roscosmos are currently conducting a joint investigation. At the same time, they do not know why the thrusters were shut down, although the space station managers have their own guesses. < / P > < p > NASA flight director Timothy Cramer told the astronauts shortly after the thrusters were shut down: "we think (but it has not been confirmed) that the thrusters were shut down because they reached the limit. Russia is investigating this and analyzing the data." < / P > < p > the international space station also tilted on July 29, when Russia's newly arrived nauka The thrusters of the research module started unexpectedly. The impact of that event was even greater, causing the international space station to rotate about 540 degrees. Russian officials blamed the cause on software failure. < / P > < p > Russian space agency officials wrote in a statement issued on July 30: "Due to a short-term software failure on the noka, a direct command was mistakenly executed to start the propeller engine for disengagement, which led to a change in the attitude of the entire space station." < / P > < p > despite an accident, the Soyuz ms-18 will return to earth this weekend. The spacecraft will be launched on Saturday (October 16) Eastern daylight saving time At about 9:14 p.m., they left the space station and landed on the grassland of Kazakhstan about 3.5 hours later. < / P > < p > Russian astronaut Nowitzki spent about 6 months in orbit, while shipenko and pereschild only stayed for 12 days. They launched on October 5 and photographed challenges on the space station They took off with astronaut Anton shkaplerov, who will stay on the space station to work. (small) < / P > < p >