In recent days, China has launched the first module of the new space station, but the central stage of the launch rocket has been out of control and is returning to Earth. Due to the huge size of the components (30 meters long and weighing more than 20 tons), there is a real risk that large debris will survive atmospheric impact and may fall into residential areas. It is too early to know exactly when and where to re-enter.
it Center stage huge Chinese rocket launcher Totally out of control And was placed Terracotta Warriors, It may also come out Residential area.It is an integral part of the rocket Long March 5b (Long March), used to start the first module in the last few days-called Tianhe -The new Chinese space station to be completed in 2022. The load capacity of the module exceeds 20 tons, According to a report from spacenews.com492 seconds after lift-off from Wenchang Space Station, it successfully separated from the launch rocket and successfully enteredEarth orbit.The center stage will have to maneuver Eye socket The return can be controlled, but this obviously did not happen, and data collected by the U.S. Air Force also shows this.
I Ground radar The method used by the Americans detects the object in question-30 meters long and 5 meters wide-“wandering” between 170 and 372 kilometers above sea level 7 kilometers per second.They defined it with a code name 2021-035B.Observations show that the rocket components do Light up regularly; This means I can’t control to spin and return to the earth. According to estimates made by experts based on data collected so far, this impact may occur within a few days or at most a few weeks. L’Descending zone It is very broad and has not yet been defined.As pointed out by spacenews, the rocket revolves around the earth. Every 90 minutes Due to the high speed, a few minutes of wasted is enough to make a huge difference in the definition of the impact site.Currently, according toTilt 41.5° It was discovered that “the rocket passed through New York, north of Madrid and Beijing, and then to southern Chile and Wellington, New Zealand, and may re-enter anywhere in the area,” explained spacenews.
It is believed that “dry matter”-that is, no Propellant -The Long March 5B center stage weighs more than 20 tons, so this is a very large and heavy object, which may cause the danger of not being completely decomposed. Re-enter the earth’s atmosphereTo make a few “rains” Detritus Large-sized objects may eventually cause damage to people and houses in inhabited areas. Experts believe that uncontrolled re-entering of the object is completely irresponsible; in fact, in the past 30 years, the launch activities organized by major aerospace agencies have provided for the controlled return of any object with a mass greater than 10 tons Method, these objects are usually placed in remote areas of the Pacific Ocean (“Nemo Point“This is a real space cemetery).
“I think it is unacceptable for him to return uncontrollably according to current standards.” He told space news Professor Jones Jonathan McDowell (Jones Jonathan McDowell), an astronomer who specializes in orbiting the earth. The expert added: “Since 1990, no objects with a mass greater than 10 tons have been deliberately left in orbit to re-enter an uncontrolled state.” There have been some recent accidents, one of which involved the Long March 5B rocket launched in 2020. ; Part of the rocket fell on the Atlantic Ocean and Ivory Coast.In 2018 China Space Station (“Palazzo Celeste” Tiangong-1) Put the world in suspense, unable to control the return, and only a few days ago, the second stage Falcon 9 of Space X It failed to derail properly and sprinkled debris on the American sky. A tank hit the farmer’s field. It is hoped that China’s huge rocket stage will crash into a completely uninhabited place, but it will take several days to know exactly when and where it will end.