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Inter pilot has been advancing, the civil affairs department is currently Babaoshan and Pinggu promote ecological tomb. (Original title: haze forecasting and early warning will introduce standards) edit: SN064 Thumbnail force wave detection. Recently, after the United States put forward the 'Einstein Program' includes two stars, which is a 'big bang observer', focusing on the ground between the probe and LISA intermediate frequency (1x10-2-100Hz) gravitational waves. Japan has also proposed a similar plan DECIGO observation of gravitational waves in the frequency band. IF band gravitational wave source is mainly medium-quality compact binary (black holes, neutron stars, white dwarfs), and gravitational waves in the early universe the Big Bang (10-34 seconds later) generated. Space laser interferometry measurement, the low-frequency gravitational waves astronomy and space physics universe forefront issue. Space gravitational wave detection has been included in the development of the Chinese Academy of Space 2050 plan. Initiated in 2008 by the Chinese Academy of Sciences, Chinese Academy of Sciences Institute of the plurality of extramural research institutes and colleges and universities to participate in the establishment of the Chinese Academy of Space gravitational wave detection demonstration group, start planning Chinese space gravitational wave detection in the roadmap for the next few decades. After several years of efforts, has formed a team of researchers based Chinese Academy of Sciences, academician Wen-Rui Hu, Wu Yueliang space chief scientist for the Academy of Tai Chi (Taiji) Planning Working Group. Academy of science and technology projects under the pilot space science research projects previously funded three consecutive working group organized various academic exchange activities including seminars and conferences, etc. Xiangshan, in theory and research to detect and study gravitational wave source of satellite technology has made many progress. By gravitational wave detection and research and demonstration several discussions of the Working Group, a program of 'Tai Chi plan' shows that China's emission of gravitational waves detectable stellar group consisting of an equilateral triangle composed of the top three satellites located at 2030 will, by a laser interferometer method of low-frequency band (1x10-4-1.0Hz) direct detection of gravitational waves. Satellite technology uses no towed, star group of satellite spacing 3 million kilometers, about 2 watts of laser power, about 0.5 m diameter telescope, acceleration noise is 3x10-15ms-2 / √Hz. LISA frequency range covers the low and intermediate frequency DECIGO. The main scientific goal of tai chi program is to observe the two-hole lead and close and great quality ratio and timely produced Celestial