Perseverance rover finds evidence of organic chemicals

  NASA’s Mars rover Perseverance has found evidence of organic chemicals, the building blocks of life, on Mars. The team behind the rover announced the discovery on December 15, 2021. Perseverance found carbon-containing organic chemicals in rocks near Jezero Crater. The probe has performed preliminary analysis of the rocks and will send samples back to Earth in the future, when scientists will conduct a more in-depth analysis of the source of the organic chemicals.

The first results of my country’s deep core astrophysics experiment released

  my country’s first deep core astrophysics experiment project, the first batch of experimental results conference of Jinping Deep Core Astrophysics Experiment, was held in Beijing. The first batch of four experimental studies on nuclear astrophysics key reactions have been released. The measurement sensitivity and statistical accuracy are higher than the international level of similar devices, reaching the maximum exposure, the widest energy range and the highest sensitivity for direct measurement of international nuclear astrophysics. This marks that my country has become the third country in the world with the ability to carry out deep core astrophysics research.

5m Optics 02 satellite successfully launched

  On December 26, 2021, my country successfully launched the 5-meter Optical 02 satellite with the Long March 4C carrier rocket at the Taiyuan Satellite Launch Center. The 5-meter optical 02 satellite was developed by the Fifth Academy of Aerospace Science and Technology Group. The satellite will operate in a network with the 5-meter optical business satellite in orbit, forming the world’s leading operational ground-based spectral detection capability, which can basically achieve nationwide land-wide hyperspectral data. Full coverage for half a year is another powerful tool for promoting the transformation of my country’s natural resource satellite remote sensing observation from quantity to quality.

Scientists unravel the mystery of ultra-fast spread of delta mutants

  On December 21, 2021, after more than three months of “chasing the murderer”, the research team including Professor Huang Bo of the Institute of Basic Medicine of the Chinese Academy of Medical Sciences and Professor Qin Chuan of the Institute of Medical Laboratory Animals finally “find out” what Delta is. How to achieve ultra-fast propagation. By increasing the number of amino groups, the delta variant can complete the proteolysis of the spike at a relatively high pH, ​​so that it can be cleaved by cathepsin, so that the viral RNA is released, thereby achieving rapid transmission.

3D printed nanomagnets reveal world of patterns in magnetic fields

  On December 21, 2021, an international team led by the Cavendish Laboratory at the University of Cambridge, UK, published a study that used advanced 3D printing technology to create magnetic double helices that, like DNA’s double helix, twist around each other. , which combines the curvature, chirality, and strong magnetic field interactions between the helices. Scientists have thus discovered that these magnetic double helices produce nanoscale topological textures in magnetic fields that have never been seen before, opening the door to the development of next-generation magnetic devices.

Chinese scholars put forward a new framework for perHz communication

  The joint team led by Professor Xu Zhengyuan from the University of Science and Technology of China published the research results of “Peahertz Communication: Spectral Fusion for Wireless Communication” in an international academic journal, providing a new idea for the sixth-generation mobile communication technology (6G). For the first time, this research proposes a new system framework for perHz communication, which breaks through the traditional spectral segmentation method of naked eye vision, organically integrates multiple spectrums of infrared, visible and ultraviolet light, and realizes the effective development and utilization of the full spectrum of perHz.

China Meteorological Administration established a carbon monitoring and verification support system

  On December 20, 2021, the China Meteorological Administration established a carbon monitoring and verification support system. This system can provide objective, comprehensive and timely monitoring and verification support for changes in total anthropogenic carbon emissions and changes in natural carbon sinks at multiple levels. According to Zhang Xiaoye, a researcher at the Chinese Academy of Meteorological Sciences, the system relies on high-precision carbon dioxide concentration data from 59 online greenhouse gas monitoring stations of the China Meteorological Administration, supplemented by carbon satellite carbon dioxide column total data, to grasp the changes in anthropogenic and natural carbon fluxes.

Scientists discover most complete dinosaur embryo to date

  A research team composed of scientists from China, the United Kingdom and Canada has conducted a three-year detailed study of a dinosaur embryo well preserved in a fossilized egg. The 66- to 72-million-year-old fossil belongs to a toothless theropod dinosaur and is the most complete dinosaur embryo scientifically recorded to date. This dinosaur embryo is preserved in a very primitive state, without too much interference from fossilization, clearly showing its state of survival. At present, the fossils are hidden in the Fujian Yingliang Stone Natural History Museum.