BEIJING, March 2 (Xinhua) -- The following is a summary of published science and technology news of China.

SPACEWALK

The Shenzhou-17 crew aboard China's orbiting space station carried out their second extravehicular mission on Saturday, the China Manned Space Agency has said.

Taikonauts Tang Hongbo, Tang Shengjie and Jiang Xinlin successfully completed all assigned tasks at 1:32 p.m. (Beijing time), after approximately eight hours of extravehicular activities. They worked together closely with the support of the space station's robotic arm and scientific researchers on Earth.

RIVER STUDY

Human effects on climate have caused a reduction of river flow seasonality, particularly at high northern latitudes, according to a study published on Friday in the journal Science.

Scientists from the Southern University of Science and Technology and the University of Leeds found that approximately 21 percent of long-term river gauging stations exhibited significant alterations in seasonal flow distributions, but two-thirds of these are not correlated to trends in annual mean discharge.

DINOSAUR SPECIES

Researchers have named a new armored dinosaur species "Datai yingliangis" after two specimens were unearthed in east China's Jiangxi Province.

The discovery of the new dinosaur is an important addition to the fossil record of Ankylosaurine, an iconic armored dinosaur species in the early Late Cretaceous. Enditem

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