Science and the future

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Solar system

By

Frank Daninos

THE 01122020 at 14:22

The Chinese Chang’e Mission 5, who left the Wenchang Space Center on 23 November, a atterri sur la Terre de la Lune. Goal: collect around 2 kilogrammes d’échantillons pour les ramener sur Terre et analyser en laboratoire une prouesse technique qui n’a pas été réalisée depuis plus de 40 years

The landing of the Chinese Chang’e probe 5, la première mission à collecter des échantillons de roches lunaires et à les restituer sur Terre depuis plus de 40 years, est désormais une réalité après son décollage le 23 November of the Wenchang Space Center in southern China with the Long March heavy launcher 5. Cinq jours plus tard, it entered lunar orbit at an altitude of about 400 and 200 km Then, the 30 November, it split into two different parts, the first one, made up of landing and climb units, preparing to touch the moon star, while the second, composed of the travel unit and the return capsule, would stay in orbit. Perfect and communications from Earth are quite normal. “

L’atterrissage a eu lieu le mardi 1er décembre à 16 h 13 KST. Les opérations de collecte pourraient alors commencer rapidement. If everything goes as planned, elles ne dureront que deux ou trois jours et chercheront à prélever des échantillons de la surface à une profondeur de deux mètres à l’aide d’une perceuse. La collision aura lieu au voisinage des tempêtes, à l’ouest de la face visible de la lune, près d’une formation volcanique d’environ 1 mille mètres de haut nommée Mons Romker en l’honneur d’un astronome allemand du XIXe siècle La particularité de ces sites est qu’ils sont “much smaller” that all those analyzed so far: Il remonte en fait à 1Seulement 2 billion years, against 31 at 44 milliards d’années Des années pour les échantillons Apollo et Luna.

#Breaking: Chang’e-5 a atterri avec succès sur la face proche de la lune, a annoncé mardi le sommet Twittercom / Pr27LCIZN4 de la China National Space Administration (CNSA)

For memory, the American Apollo missions, thanks to their astronauts, were able to return 382 kilograms of rocks and fine dust between 1969 and 1972 and the Soviet Luna missions, as for them, mechanized, more of 320 grams between 1970 and 1976, or less than a thousand. Once Chang’e 5 must return 2 kilograms of «moon cut» and thus return to these glorious missions with the symbolic aspect and technological prowess, scientific implications may be significant, to date all rocky surfaces of the solar system in particular. In case of success, it will be repeated. Chinese specimens return to Earth in just over two weeks, the 16 or 17 December, first in Inner Mongolia before being transported to Beijing

to the moon
exchange
Chang’e 5

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Chang’e 5, Moon, moon landing, China, lunar orbit

News – FR – VIDEO Chang’e Chinese lander 5 lands on the moon

Source: https://www.sciencesetavenir.fr/espace/systeme-solaire/la-sonde-chinoise-chang-e5-s-apprete-a-alunir_149642

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