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China's spacecraft successfully brings moon samples to earth

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Google Oneindia News

Beijing, Dec 17: China's Chang'e-5 probe successfully touched down on Earth in the early hours of Thursday, bringing home the first samples of the moon in over 40 years.

moon

The spacecraft landed in Siziwang Banner in north China's Inner Mongolia Autonomous Region, at 1:59 AM (local time), according to the China National Space Administration (CNSA).

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Zhang Kejian, head of the CNSA, declared the Chang'e-5 mission a success. It marks a successful conclusion of China's current three-step lunar exploration programme of orbiting and landing, and bringing back samples which began in 2004, state-run Xinhua news agency reported. It is China's maiden attempt to retrieve materials from an extra-terrestrial body. The Chang'e-5 lunar probe was launched from the Wenchang Spacecraft Launch Site on November 24.

It was the first attempt to bring the moon samples in over 40 years after the US sent astronauts to the moon to collect samples. In the Soviet Union's unmanned lunar sampling missions, the spacecraft took off from the moon and returned to Earth directly.

The 8-tonne Chang'e-5 spacecraft has four independent but interactive components. This includes one to stay in lunar orbit as a docking station, one to go down to the moon's surface and drill for samples, one to take the material back to the dock station and another to bring the samples back to Earth.

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The return capsule of Chang'e-5 separated from the orbiter about 5,000 km above the Atlantic. The capsule entered the Earth's atmosphere at an altitude of about 120 km. At about 10 km above ground, a parachute opened. The capsule landed smoothly in the predetermined area and the search team recovered it, the report said.

The capsule is set to be airlifted to Beijing for opening, and the moon samples will be delivered to the research team for analysis and study, said the CNSA. China will make some of the samples available to scientists in other countries, Pei Zhaoyu, deputy director of the Lunar Exploration and Space Program Center of CNSA, has said.

Chang'e-5 is one of the most complicated and challenging missions in China's aerospace history as it touched down on the north of the Mons Rumker in Oceanus Procellarum, also known as the Ocean of Storms, on the near side of the moon on December 1, the report said.

This site was chosen because it had a younger geological age than the sampling areas of the US and the Soviet Union more than 40 years ago, and had never been sampled. The new samples reportedly weighing about two kg will be of great scientific value, according to Chinese space scientists.

Though lunar samples were brought back in the US and Soviet missions, scientists need more samples of different ages to piece together a complete history of the moon. Chang'e-5 drilled into the lunar surface for samples that record evolutionary events, and grabbed material on the surface.

Using modern analytical technologies, scientists will be able to unravel the mysteries of volcanic activities and meteorite impacts over the past billion years, the report said.

The probe has collected material at different sites to ensure the diversity of the samples. After the samples were sealed, the probe's ascender successfully took off from the moon and docked with the orbiter-returner combination in lunar orbit.

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