Shulou(Shulou.com)11/24 Report--

Thanks to CTOnews.com netizen grass Luo Yuzi for the clue delivery! CTOnews.com, September 15, according to the Shanghai Academy of Aerospace Technology, at the 10th International Conference on Aerospace Technology Innovation, Fang Cheng, academician of the Chinese Academy of Sciences, introduced the "Xihe No.2" solar-terrestrial L5 solar exploration project jointly proposed by Nanjing University, China Meteorological Administration and Shanghai Aerospace Technology Research Institute of China Aerospace Science and Technology Corporation, which is initially scheduled for launch in 2026. For the first time, a man-made detector was launched to the L5 point of the sun and earth, opening the era of three-dimensional solar exploration in China, exploring the origin and evolution of the magnetic field in the solar active region and studying the impact of solar bursts on the earth.

Fang Cheng said in an interview that Xihe 2 can see the sun from different angles because of the "difference" of L5.

According to Fang Cheng, the L5 point of Sun and Earth is an international exploration blank, and it is of great scientific significance and good engineering feasibility to carry out exploration in this area. Combined with near-earth observation, the three-dimensional reconstruction of solar activity can be realized at L5, which provides key information for revealing the physical mechanism of solar bursts, and the solar activity facing the earth can be observed four or five days in advance. real-time tracking of Earth-facing solar bursts brings a revolutionary breakthrough to space weather forecasting.

CTOnews.com Note: L5, the fifth Lagrangian point, is about 150 million kilometers from the earth. At this point, the satellite remains basically stationary relative to the earth and the sun.

At the meeting, Zhang Chongfeng, deputy chief designer of China's lunar exploration lander, also shared the feasibility of using lunar lava pipeline caves for follow-up lunar research stations.

Zhang Chongfeng said that compared with Earth, the moon has almost no atmosphere, and the resulting huge temperature difference between day and night, high-intensity cosmic radiation and the impact of micrometeorites will bring security risks to the establishment of a long-term scientific research base on the moon. The interior of the cave provides a huge space, and compared with the extreme environment of high and low temperature changes on the lunar surface, the interior of the cave is relatively constant, which naturally provides protection against radiation, meteorite impact, moon dust and so on.

Zhang Chongfeng's team focused on selecting Jinghai and Zhongfenghai, two lunar lava caves, as the main exploration targets, and are carrying out the design of the exploration scheme. The team put forward a plan for the construction of the lunar molten cave base: establishing an energy communication support center at the entrance of the cave; deploying facilities and personnel entry and return channels; carrying out topographic transformation, deploying cabins and in-situ construction of scientific research and residential modules in the molten cave, and building a long-term underground lunar scientific research base.

On October 14, 2021, the Xihe satellite was successfully launched from the Taiyuan Satellite launch Center. The full name of "Xihe" is "Solar H α Spectral Exploration and double Super platform Science and Technology Test Satellite". The successful launch of "Xihe" broke the history of no special satellite for solar exploration in China.

▲ "Xi he" launch mission identification

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