Most of the space laboratory burned in the Earth's atmosphere on re-entry. A small amount of space waste hit the designated area in the southern Pacific. Tiangong-2 has been in orbit for more than 1,000 days – far beyond its planned two-year life – after being released by Jiuquan's satellite center in September 2016.
During that time, he placed two astronauts for 30
Zhu Zongpeng, chief space designer at the Chinese Academy of Space Technology, Tiangong-2 was in good condition and could continue to travel for several more years.
However, the solution was to remove the space laboratory's orbit "responsibly" before it became too old
Zhu told reporters: "Tiangong-2's voluntary retirement is designed to eliminate all risks. MORE: NASA Reveals Stunning Plan for Permanent Orbit on Moon Base
"Otherwise, the reliability of space in the space laboratory will decrease as the extended service extends longer than originally intended.
Anomalies r, Tiangong-2 will return uncontrollably back into the atmosphere, and some parts may not be completely burned, with waste falling on the ground posing a threat to humans.
Tiangong-2 uses a two-step strategy for
First, the space laboratory was lowered to an elliptical orbit of 200 km. Read more: "The alien life can exist in the two-dimensional universe" ̵
And then dropped it into an elliptical orbit 43 miles (70 km) before its fiery
The planned Tiangong-2 de-orbit comes after its predecessor, Tiangong-1, lost power in April 2018 and made an uncontrolled landing in the crash.
Tiangong-1 was originally supposed to be decommissioned in 2013, but his mission was repeatedly prolonged until China lost communication with the spacecraft  READ MORE: Testimonial supermassive black holes seen in the " deadly spiral "
Fortunately, debris from the doomed spacecraft that traveled at 17,000 km / h fell into the ocean while avoiding
China is now preparing to release its third interim orbital laboratory, Tiangong-3, which will be used to test key technologies.
The country's ultimate goal is to launch a "real" space station in 2020 that will allow China to play a greater role in satellite space exploration, space flight pilots and space control.