Science and technology morning news is coming丨2022-4-8

【Today's Cover】

In April, the snow of the Zhaosu Grassland in the Ili River Valley in Xinjiang gradually begins to melt, and the top ice flowers bloom quietly under the nourishment of trickle snow water. Xinhua News Agency, photo by Li Wenwu

Message stations

Schematic diagram of three satellites in the Gaofen-3 series in the same orbit. Image source: China Aerospace Science and Technology Corporation

At 7:47 a.m. on the 7th, the mainland successfully launched the Gaofen-3-03 satellite with the Long March 4 Cyao 38 carrier rocket at the Jiuquan Satellite Launch Center. After the Gaofen No. 3 03 satellite is launched into orbit, it will be networked with the Gaofen No. 3 01 satellite and the Gaofen No. 3 02 satellite running in orbit, and Samsung will work together to weave a "sky eye net" in space to achieve 1 meter resolution and 1 day revisit, which will greatly enhance the sea and land observation capabilities of the continental radar satellite. (Source: Science and Technology Daily)

New discoveries

Image source: Jiangsu Academy of Agricultural Sciences

● A few days ago, the insect resource utilization team of the Institute of Recreational Agriculture of the Jiangsu Academy of Agricultural Sciences found a "bride price" of insects in fossils from the Cretaceous period 100 million years ago: a saliva ball secreted by the male insects of the genus Oblatehorn, a group of basal taxons of the general family of maitake, which was sealed in a Burmese amber. Based on the morphology of the "bride price" in amber and the characteristics of living insects such as feeding habits, herd behavior, hunting behavior, and "bride price offering" behavior, the researchers further reconstructed the relevant evolutionary history. Studies have confirmed that the "bride price" behavior is not an accidental event for insects, but a primitive, common means of addressing the lack of nutrition in females when they reproduce their offspring. The results have been published in the international geological journal Gondwana Studies. (Source: Science and Technology Daily)

Pasta remains of phytosilicon in CL 1 (A, B), CL 2 (C) and CL 3 (D); scale 20 μm. Yang Yimin Research Group Courtesy of China News Network

●Recently, the research group of Professor Yang Yimin of the Department of Archaeology and Anthropology of the University of Chinese Academy of Sciences cooperated with the Palace Museum and the Ningxia Institute of Cultural Relics and Archaeology to conduct a systematic study of the Han Dynasty food remains excavated from the Changle Cemetery in Zhongwei City, Ningxia, and found that the ancestors living in the important areas of ethnic integration on the Silk Road, including scones and meat skewers, had meat and vegetarian food, which not only absorbed the eating habits of local ethnic minorities, but also retained the characteristics of immigrants. Among them, the meat skewers are the earliest actual lamb skewers found in China so far. (Source: China News Network)

Image source: CCTV news client

●In April, researchers from the Forestry Bureau of Jian'ou City, Fujian Province, conducted a census of forest germplasm resources in Henglu Village, Shuiyuan Township, Jian'ou City, located in the Vulture Peak Mountains, and discovered a new species of Euphorbia of the family Euphorbia and named it "Euphorbia". The research results have been published in the international journal of plant taxonomy, Systematic Botany. (Source: CCTV News Client)

Pure technology

A citizen wearing a mask walks on the streets of Stockholm, the capital of Sweden, on November 3, 2020. Xinhua News Agency, Photo by Wei Xuechao

● On the 6th, the British Medical Journal published a research report by Swedish researchers, pointing out that the risk of thrombosis increased significantly within 6 months of infection with the new crown virus, and mild patients were no exception. Researchers have therefore called for attention to vaccination and thrombosis prevention and treatment in high-risk populations. (Source: Xinhua News Agency)

Image source: Monthly Report of the Royal Astronomical Society

Recently, scientists have proved that the two galaxies with "black holes" found earlier, unicorns and giraffe, are actually binary star systems, which means that the real names of the two "black holes" are stars. The findings were published in the Monthly Report of the Royal Astronomical Society. (Source: The Paper)

Look at the world

Female Gruurius minuano. Image source: CCTV news client

● On the 6th, the online spider search database "World Spider List" said that the 50,000th spider was included, which is a jumping spider called Guuriurius minuano. The museum that runs the World Spider List published an article saying Guriurius minuano was identified by Kimberly da Silva Marta, a spider scientist at the Brazilian Museum of Natural Sciences, and colleagues. The spider is found in southern Brazil, Uruguay and around Buenos Aires, the capital of Argentina, and usually inhabits shrubs or trees. (Source: CCTV News Client)

At a hospital in Bangalore, India, on December 31, 2021, medical staff hold a note looking forward to safety in 2022. Xinhua News Agency

● On the 6th, the Mumbai Municipal Government of India released a message saying that 1 case of XE infection with the new corona recombinant strain was found in Mumbai, which is the first time that this recombinant strain of the new crown has been found in India. The reported case of infection with the XE strain in Mumbai is a 50-year-old woman who has been fully vaccinated against COVID-19. (Source: Xinhua News Agency)

Editor: Zhang Qiqi

Review: Yue Liang

Final Judgement: Wang Yu