BEIJING, Nov. 14 (Xinhua) -- The following is a summary of published science and technology news of China:

OXYGEN PRODUCTION ON MARS

An AI-driven robotic chemist, developed by Chinese scientists, has automatically synthesized and intelligently optimized catalysts for the oxygen evolution reaction from Martian meteorites, offering a highly efficient and energy-conserving solution for the production of oxygen on Mars.

Using a machine-learning model, the AI chemist automatically and swiftly identifies the optimal catalyst formula from more than three million possible compositions. This groundbreaking discovery demonstrates the feasibility of the AI chemist in the automated synthesis of chemicals and materials for Mars exploration, according to the study published in the journal Nature Synthesis on Monday.

DISTRIBUTED PHOTOVOLTAIC POWER

China's installed capacity of distributed photovoltaic power generated by households has reached about 105 million kilowatts by the end of September, covering more than five million households in the country's rural areas, data from the National Energy Administration (NEA) showed Tuesday.

In recent years, China's distributed photovoltaic power generated by households has developed rapidly, the NEA said, adding that this has played a vital role in ensuring the safe and reliable supply of electricity, promoting the green transformation of energy as well as driving the growth of farmers' incomes.

ULTRA-HIGH-SPEED INTERNET

China has launched the world's first ultra-high-speed next-generation Internet backbone with a bandwidth of 1,200G bits per second (1.2T), according to a press conference held at the Tsinghua University in Beijing on Monday.

The ultra-high-speed next-generation Internet backbone, jointly developed by the Tsinghua University, China Mobile, HUAWEI and CERNET.com Corporation, boasts a total transmission network spanning more than 3,000 kilometers linking the three cities of Beijing, Wuhan and Guangzhou. Enditem

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