China’s space station Tianhe core module was successfully launched on the morning of April 29, kicking off the construction of China’s “Tiangong” space station, but space experts warned that the 21-ton second section of the Long March 5B Yaoji launch vehicle, which is responsible for sending the core module to orbit, will go completely out of control in the next few days and return to the atmosphere, possibly landing in an inhabited area. possibly landing in an inhabited area.
According to Andrew Jones, a freelance journalist specializing in China’s aerospace program, the 21-ton second section of the Long March 5B Yao-2 launch vehicle did not fall into its designated place in the ocean after launch, but began to spin uncontrollably around the Earth and is expected to fall uncontrollably in the next few days to weeks, according to Space News. Jones noted that the rocket pad is about 30 meters long and 5 meters wide, and will burn when it re-enters the atmosphere, but large pieces of debris may survive and fall into residential areas.
Jonathan McDowell, a Harvard astrophysicist, said that the Long March 5B crashed in an uncontrolled manner after completing its mission last year, making it the largest uncontrolled re-entry object in the last 30 years. By China’s current standards, an uncontrolled crash would be unacceptable.
After the launch of China’s Long March 5B last May, it became the largest uncontrolled re-entry object in nearly 30 years, with rumors of incompletely burned wreckage falling into the Atlantic Ocean near West Africa and a 12-meter metal object suspected to have come from hitting the Ivory Coast of the African nation.
According to the “Aerospace” (Aerospace) website prediction, the Long March 5B remote two launch vehicle about 1:30 am Taiwan time on the 11th around 49 hours before and after re-entry into the atmosphere, the current research “Long March 5B” possible crash site in West Africa off the coast of the area, but because the rocket is not controlled, as long as the deviation of 1 minute, the location of the wreckage fell. However, because the rocket is not controlled, as long as the deviation of 1 minute, the location of the wreckage will change about 500 km, and must continue to observe.
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