Friday , September 24 2021

China flies to the moon and wants rocks from “storm ocean”



China has placed an unmanned spacecraft on its way to land on the moon. During the flight, rock samples should be brought back to earth for the first time in more than four decades. The “Long March 5” type rocket took off local time Tuesday morning (Monday night CET) from the space station at Wenchang on the southern Chinese island of Hainan.

The spacecraft, named after the Chinese moon goddess “Chang’e 5”, is expected to bring a moon to the moon on Sunday that will collect rocks and drill samples. If the return were successful, China would be only the third space nation, after the US and USSR in the 1960s and 1970s, to succeed in such a project. The spacecraft is supposed to land in the volcanic area named after the German astronomer Karl Rümker (1788-1862). It lies in the “ocean of the storms” in the upper, left, left side of the moon facing the earth.

The mission is considered one of the most complex that space travel in China has ever accomplished: for the first time, a Chinese ascent would start again from the moon, take rock samples and perform docking movement in the earth’s satellite orbit before the return capsule flies back to earth.

The 8,200 kilogram spacecraft consists of four modules: the orbiter with the return capsule and the lander with the ascending phase. After touching down on the moon’s surface, the gutter is supposed to use a long arm to collect about two kilograms of moon rock and samples of boreholes up to two meters deep and keep them in a chamber.

After the ascent and docking motion with the orbiter, the rock samples are to be loaded into the capsule, which then returns to Earth. The spacecraft is expected to land at the Siziwang Flag in Inner Mongolia on December 16 or 17. Scientists are eagerly awaiting the samples, because no rock from the moon’s history was recently brought for studies.

“Ocean of Storms” is only 1.2 million years old. On the other hand, moon rocks collected by the USA and USSR are significantly older, at 3.1 and 4.4 million years. The largest moon plain got its name from the earlier assumption that its appearance with the weak crescent meant stormy weather.

Researchers hope the samples will provide important new insights into volcanic activity and the history of the moon. Apollo US missions brought back about 380 kilograms of moon rock. The Soviet Union collected a total of 300 grams – most recently with the unmanned “Luna 24” mission in 1976, when about 170 grams of moon dust came to earth.

The Chinese moon flight occurs 51 years after the first U.S. staff moon landed on July 21, 1969, when Neil Armstrong and Edwin “Buzz” Aldrin were the first people to step on the Earth’s satellite surface. The US has brought astronauts to the moon six times – most recently with “Apollo 17” in December 1972.

It is only the second regular flight of the more than 800-tonne Chinese rocket “Long March 5” after such a launch of the Mars probe “Tianwen-1” in July. Initially, there were problems with the engine of the new heavy lift rocket, which resulted in the moon’s mission being delayed by three years.

“Chang’e 5” is said to land on the moon at sunrise and remain on earth for one moon day – two weeks. The spacecraft does not have to have special heating devices to withstand the very cold temperatures of night in the moonlight. The complexity of the three-week flight is also considered a preparation for possible future staffed moon landings.

China is pursuing an ambitious space program with missions to the moon and planet Mars and building its own space station. In January 2019, China became the first space nation to land with “Chang’e 4” on the far side of the unexplored moon. Roaming has been left to continue exploring the surface.

Quelle: Beth / Dpa


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