BEIJING, Dec. 21 (Xinhua) -- The following is a summary of published science and technology news of China:

ENGINEERING ACHIEVEMENTS

China's space station, the Harmony operating system (OS) developed by Huawei, and the Baihetan hydropower station in southwest China have been selected as Global Top 10 Engineering Achievements 2023.

ChatGPT, the exascale supercomputer Frontier, NASA's double asteroid redirection test, the RTS, S/AS01 malaria vaccine, Boston Dynamics' Spot and Atlas robots, the high-quality lithium-ion power battery, and the widely-used unmanned aircraft have also been included in this list.

The results were finalized through a global collection of nominations, expert selection and recommendations, a public questionnaire and deliberation by the selection committee, according to a report published on Wednesday in Engineering, the flagship journal of the Chinese Academy of Engineering.

SHENZHOU-17 CREW EVAS

The Shenzhou-17 crew members, who are currently on board China's space station, will conduct their first extravehicular activities (EVAs) within the next few days, the China Manned Space Agency (CMSA) announced on Wednesday.

They have completed the crew rotation with Shenzhou-16 astronauts, space station platform maintenance, life and health support, extravehicular spacesuit inspection and testing, Tianzhou-6 cargo ship equipment inspection, and preparation for the upcoming spacewalk, according to the CMSA.

NEW ORCHID SPECIES

Six new orchid species have been discovered in southwest China's Yunnan Province and Xizang Autonomous Region, according to the Kunming Institute of Botany under the Chinese Academy of Sciences.

During several field surveys in Yunnan and Xizang in recent years, the researchers collected specimens of six previously unidentified orchid species.

Following a review of the literature, morphological studies of herbarium specimens and plastid phylogenomic analyses, they concluded that these specimens are new to the genera Neottia, Papilionanthe, Gastrochilus and Cylindrolobus. Enditem

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