Recently, BYD Auto officially announced that according to its strategic development needs, it will stop the production of fuel vehicles from March 2022.

BYD said, "In the future, BYD will focus on pure electric and plug-in hybrid vehicles in the automotive sector. This marks that BYD has become the first car company in the world to officially announce the discontinuation of fuel vehicles. At the same time, BYD will continue to provide Some fuel vehicle customers continue to provide comprehensive services and after-sales guarantees, as well as spare parts supply throughout the life cycle to ensure worry-free travel.”

According to BYD's sales report, it sold a total of 104,900 vehicles in March, all of which were new energy vehicles, and did not produce and sell gasoline vehicles.

The reporter learned from the press conference on the 23rd that a black box of China Eastern Airlines flight MU5735 was found on the 23rd.

A reporter from People's Daily learned from the press conference that a black box of the crashed plane has been found at the accident site. Since the found black box is seriously damaged, it is not certain whether it is a data recorder (FDR) or a cockpit voice recorder (CVR). ).

On March 16, the Financial Stability and Development Committee of the State Council held a special meeting to study the current economic situation and capital market issues. The meeting was chaired by Liu He, Member of the Political Bureau of the CPC Central Committee, Vice Premier of the State Council, and Director of the Finance Committee. Responsible comrades from relevant departments attended the meeting.

The meeting pointed out that under the current complex situation, the most important thing is to insist that development is the top priority of the party to govern and rejuvenate the country, adhere to economic construction as the center, adhere to deepen reform and expand opening up, adhere to the principles of marketization and the rule of law, and adhere to the "two Unswervingly", earnestly protect property rights, fully implement the spirit of the Central Economic Work Conference and the deployment of the National "Two Sessions", coordinate epidemic prevention and control and economic and social development, keep the economy operating within a reasonable range, and maintain the stable operation of the capital market.

The meeting examined related issues. Regarding macroeconomic operation, we must implement the decisions and arrangements of the CPC Central Committee, effectively invigorate the economy in the first quarter, proactively respond to monetary policy, and maintain moderate growth in new loans. Regarding real estate enterprises, it is necessary to timely research and propose effective and effective response plans for preventing and resolving risks, and propose supporting measures for the transition to a new development model. Regarding China Concept Stock, the regulatory agencies of China and the United States have maintained good communication, and have made positive progress, and are working on forming a specific cooperation plan. The Chinese government continues to support various types of companies to list overseas. Regarding platform economic governance, relevant departments should improve the established plans in accordance with the principles of marketization, legalization, and internationalization, adhere to seeking progress while maintaining stability, and steadily advance and complete the rectification work of large platform companies through standardized, transparent, and predictable supervision. Both red and green lights must be set up to promote the stable and healthy development of the platform economy and improve international competitiveness. Regarding the stability of Hong Kong's financial market, the regulators of the Mainland and Hong Kong should strengthen communication and cooperation.

The meeting emphasized that the relevant departments should earnestly undertake their own responsibilities, actively introduce policies that are favorable to the market, and prudently introduce contractionary policies. Respond in a timely manner to hot issues that the market is concerned about. Any policy that has a significant impact on the capital market should be coordinated with the financial management department in advance to maintain the stability and consistency of policy expectations. The Finance Committee of the State Council will, in accordance with the requirements of the Party Central Committee and the State Council, step up coordination and communication, and conduct accountability when necessary. Financial institutions must proceed from the overall situation and firmly support the development of the real economy. Long-term institutional investors are welcome to increase their shareholdings. All parties must deeply understand the significance of the "two establishments", resolutely implement the "two maintenances", maintain the long-term trend of the healthy development of China's economy, and jointly maintain the stable development of the capital market.

Last year, NASA's Perseverance rover collected its first Martian rock sample. The scientists' final analysis showed that water was present in Mars' Jezero Crater for "a very long time" -- tens of thousands or millions of years. This, in turn, suggests that Mars' water is stable enough that life may have once existed.

"New Scientist" weekly reported that China's Zhurong rover also found signs of water shaping the Martian landscape.

China's Zhurong rover landed in May 2021 on the Utopia Plain, a large plain in the northern lowlands of Mars.

The report pointed out that preliminary data collected by Zhurong shows that the Utopia Plain has been affected by wind for a long time in the past, and may even have been eroded by water. These preliminary data were analyzed by Ding Liang and colleagues at Harbin Institute of Technology in China.

The data showed that many of the rocks found around the rover's landing site had etch marks and grooves on one side, suggesting they must have been eroded by strong wind and sand, and some rocks had a flaky texture, which usually occurs with water. produced by interaction.

Joel Davies, from the Natural History Museum, London, UK, said: "What's really exciting is that many scientists believe that the Utopian Plains may have hosted an ancient ocean of liquid water billions of years ago. As Zhurong continues Exploration, and hopefully it will help answer this question that has puzzled scientists for decades."

The latest data from Zhurong shows that the Martian landscape has signs of erosion by water

my country's Tianwen-1 "Zhurong" rover has carried out a number of explorations on Mars, and my country will go further in Mars exploration in the future. The official said that it plans to realize the Mars sampling return mission by 2030.

According to Wu Weiren, the difficulty of this project is much greater than that of lunar sampling and return. The first problem to be solved is to develop a launch vehicle with greater thrust. In the follow-up, China is also preparing to conduct marginal exploration of the solar system.

"The sun is about 150 million kilometers from the earth, which is an astronomical unit. We plan to achieve the 'double hundred' goal in 2049, that is, on the 100th anniversary of the founding of New China, to complete 100 astronomical units, which is 15 billion kilometers away deep space exploration."

my country's first Mars exploration mission successfully landed on Mars on May 15, 2021. Zhurong was not designed to return, so it will serve over a period of time after its design life.

News on January 24, according to CCTV military channel news, at 11:30 am today, Tsinghua University School of Aeronautics and Astronautics-Spray Combustion and Propulsion Laboratory conducted a new engine flight demonstration verification test.

The engine was successfully ignited and worked stably within the predetermined altitude and speed range, and the test was a complete success. The test shows that my country has mastered the independent research and development and engineering realization capabilities of the new engine, and ranks among the world's forefront in the field of new aerospace power.

After the test, the engine of the aircraft was turned off, and then the parachute was opened and slowly descended to the desert, where the testers could recover.

my country's new engine flight demonstration test is successful: the field of aerospace power ranks among the top in the world

my country's new engine flight demonstration test is successful: the field of aerospace power ranks among the top in the world

The "air and sky" field is an altitude of more than 30,000 meters. The oxygen at this altitude is very thin, and it is difficult for traditional turbojet engines to operate normally. The new engine developed by Tsinghua University is expected to be a scramjet, which can help the aircraft to accelerate or adjust its attitude at such a high altitude and at high Mach speeds.