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NASA: Navigation failure caused the mission of the "Wit" Mars helicopter to end. NASA said on December 11 that the investigation and evaluation of the "Wit" Mars helicopter showed that the navigation system failure was the cause of the rotor damage and the end of the mission during its landing. The "Wit" helicopter landed on Mars with the American "Perseverance" rover on February 18th, 2021. It weighs about 1.8 kilograms, has four rotors, and is powered by solar panels for lithium batteries. On April 19th of the same year, Wit completed its first flight on Mars. On January 18th this year, Wit made its 72nd and last flight to Mars. Because its rotor blades were damaged during the landing, it could not fly again, and NASA announced the end of its mission. On the 11th, NASA announced the investigation results of the last flight of Wit. The evaluation shows that the navigation system of "Wit" can't provide accurate data during its flight, causing a series of failures, leading to the end of its mission. (Xinhua News Agency)According to the data of Cat's Eye Professional Edition, the movie "Lone Star Project" was released for 6 days, and the total box office broke 70 million.The dividend index has performed better for a long time, and the allocation value of Standard & Poor's dividend ETF(562060) has attracted much attention. By midday on December 12, the standard & poor's dividend ETF(562060) had increased by 0.44%, with a turnover of 10.1606 million yuan. The constituent stocks are mixed. In terms of rising, Yongxing Materials led the gains, and Voice Holdings followed suit. In terms of decline, Luan Huan was able to lead the decline, while Orchid Science and Technology fell. In the news, as of December 11, 940 listed companies have thrown out 994 single and medium-term cash dividend plans this year, with a year-on-year increase of 269.41%; The total amount of dividends involved was 667.519 billion yuan, a year-on-year increase of 166.24%. According to the analysis of Xingzheng Securities, the long-term performance of dividend strategy in the US stock market is significantly better than that of the S&P 500 index, and its stability is higher. From 2003 to 2022, the annualized rate of return of the S&P 500 high-quality and high-dividend index reached 12.0%, which was higher than the S&P 500 index's 10.5%. Donghai securities said that under the downward trend of risk-free interest rate, dividend stability and growth potential have become important considerations, and we are optimistic about the investment value of dividend plate.

The CSI convertible bond index closed up by 0.46% at noon, while the auto model convertible bond, the alliance convertible bond and the profit convertible bond rose by 15.85%, 13.27% and 11.35% respectively. Tianyuan convertible bonds fell by 15.28% and Yingtong convertible bonds fell by 5.30%.Daiwa Capital Market raised the target price of Tesla from $285 to $420.China Resources Property Company responded to the explosion of high-rise residential buildings in Shenzhen Bay Yuefu. On December 12, China Resources Property Company responded to the explosion of high-rise residential buildings in Shenzhen Bay Yuefu: Next, the property company will fully cooperate with relevant government departments to do the aftermath, help and care for residents as much as possible, and tide over the difficulties with them.

Iflytek and other robot technology companies have a registered capital of 30 million yuan. According to Tianyancha App, Anhui Lingdong General Robot Technology Co., Ltd. was recently established with Hu Guoping as the legal representative and a registered capital of 30 million yuan. Its business scope includes industrial robot manufacturing, industrial robot sales, intelligent robot research and development, electrical equipment sales, computer software and hardware and auxiliary equipment retail, information system integration services, intelligent robot sales, mechanical equipment leasing, etc. According to shareholder information, the company is jointly held by Anhui Xunfei Yunchuang Technology Co., Ltd., a subsidiary of Iflytek (002230), Anhui Yanzhi Technology Co., Ltd. and Anhui Lingji Wanwu Technology Partnership (Limited Partnership).Zuckerberg is reported to have donated $1 million to Trump's inauguration fund.Prime Minister of Thailand: It is estimated that the GDP growth rate will exceed 3% in the fourth quarter.