The National Astronomical Observatory installed the 70-meter Mars antenna reflector in Tianjin Wuqing 天津武清 yesterday 4-25-20. The largest single aperture fully movable antenna in Asia, provides a solid foundation for China’s deep space exploration. The high performance receiving antenna with a total weight of about 2,700 tons, 72 meters high, the diameter of the main reflecting surface is 70 meter, composed of 16 laps of 1328 high-precision panels, has an area equivalent to nine basketball courts.
As many satellite startups plan to launch small satellites into low-Earth orbit (LEO) to provide global broadband internet services, a Chinese satellite provider now suggests the use of 5G speeds for the purpose.
The call comes as China attaches more importance to the development of the satellite-enabled mobile internet and includes the area in its “new infrastructure” construction plan, which could offer both short-term relief and a long-term boost to the economy.
Beijing-based private aerospace company Galaxy Space recently held an experimental 3-minute video call by connecting to Wi-Fi hotspots provided by a satellite terminal. Galaxy Space launched China’s first LEO 5G broadband satellite that went into orbit earlier this year.
The clear picture and swift response in the video call on Friday proved that the LEO 5G broadband satellite developed by the private startup is reliable, while a race between the world’s top economic superpowers to roll out 5G networks goes on.
The National Development and Reform Commission included the satellite internet into the “new infrastructure” list on April 20, ramping up its efforts to develop the technology.
The 312 meters 双江口水电站大坝 hydroelectric power station dam, the world’s highest dam, constructed by the national energy group Dadu River Company 大渡河公司 , sees the completion of 44 million cubic meters wall filling as the first phase of construction. Shuangjiangkou Hydropower Station reservoir is located in the upper reaches of the Dadu River, located in Barkam, Ngawa Tibetan and Qiang Autonomous Prefecture, Sichuan Province, is a key project of the National Electricity Development “13th Five-Year Plan”, features “high altitude, high dam, high ground stress, high flow rate, high slope, high cold”. The hydroelectric power station will have an installed capacity of 2 million kilowatts, with a normal reservoir level of 2,500 meters and a total reservoir capacity of 2,897 million cubic meters. The whole project consists of a dam, a flood relief building, a water diversion power generation system, and other facilities.
