The National Science Foundation (NSF) announced that the gravitational wave was directly detected for the first time, which confirmed Einstein's prediction. On June 5438+02, the reporter learned from Sun Yat-sen University in Guangzhou that the "Qin Tian Plan", a major local gravitational wave detection project in China, was officially launched in July 1965, and some key technologies have made concrete progress, and the project is currently under construction. According to reports, Sun Yat-sen University's "Qin Tian Plan" focuses on gravitational wave research, carries out pre-research on the tasks of space gravitational wave detection plan, formulates the implementation plan and road map of China space gravitational wave detection plan, and conducts research on key technologies. According to the previous assumption, the "Qin Tian Plan" will be mainly implemented in four stages: in the first stage, the ground auxiliary facilities such as the moon/satellite laser ranging system and large laser gyro planned by Qin Tian will be completed; In the second stage, the key technologies such as no-drag control, spaceborne laser interferometer and experimental verification of space equivalence principle are completed. In the third stage, the key technologies such as high-precision inertial sensitivity, inter-satellite laser ranging and global gravity field measurement are verified; In the fourth stage, all the key technologies needed for space gravitational wave detection are completed, and three earth high-orbit satellites are launched for gravitational wave detection. It will take about 20 years to complete all the four sub-plans, with an investment of about 654.38+0.5 billion yuan. It is reported that the Zhuhai Campus of Sun Yat-sen University will build the ground research infrastructure needed for the Qin Tian project. Luo Jun, president of Sun Yat-sen University, has previously revealed that the school will dig a cave in Phoenix Mountain in Zhuhai Campus and establish a cave ultra-quiet laboratory. In addition, the infrastructure construction of laser ranging ground station has been started, and some key technologies have also made concrete progress. "We will create a space where three satellites will detect the existence of gravitational waves through detectors connected by lasers."