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【科技日报】我国原初引力波探测实验实现首光观测
Ke Ji Ri Bao·2025-07-14 00:55

Core Insights - The first phase of the Ali Primordial Gravitational Wave Detection Experiment has been completed, achieving its first light observation and successfully capturing clear images of radiation from the Moon and Jupiter at a frequency of 150 GHz, marking a significant step in China's efforts in primordial gravitational wave detection [1][2] - Primordial gravitational waves, produced during the Big Bang, are crucial for understanding the origins of the universe and are at the forefront of high-energy physics and astronomy research [1] - The experiment, initiated by a team led by Zhang Xinmin in 2014 and officially launched at the end of 2016, aims to construct a high-altitude gravitational wave telescope in the Ali region of Tibet at an elevation of 5,250 meters for sensitive ground detection of primordial gravitational waves in the northern sky [1][2] Project Development - After over eight years of development, the research team overcame challenges such as high-altitude hypoxia and successfully completed the installation and debugging of the telescope, enabling remote control and data transmission from Ali to Beijing, thus validating core design indicators [2] - The Ali Primordial Gravitational Wave Detection Experiment has become a major international collaboration project, led by the Chinese Academy of Sciences and involving 16 domestic and international research institutions, including Stanford University [1][2] - Currently, there are three main primordial gravitational wave detection experiment sites globally, with the other two led by the United States located in Antarctica and the Atacama Desert in Chile [2]