Group 1 - The AliCPT-1 experiment, located at an altitude of 5250 meters in Tibet, has successfully achieved its first light observation, marking a significant step in China's gravitational wave detection efforts [1][6] - The project is led by the Institute of High Energy Physics and involves collaboration with 16 domestic and international research institutions, including Stanford University, successfully capturing clear images of radiation from the Moon and Jupiter in the 150GHz frequency band [2][8] - The AliCPT-1 project was proposed in 2014 and officially launched in 2016, supported by the Chinese Academy of Sciences, the National Natural Science Foundation of China, and the Ministry of Science and Technology, evolving into a major international collaboration [6][8] Group 2 - The gravitational wave detection experiment is recognized as a significant frontier in fundamental science, crucial for testing theories of the universe's origin [8] - The experiment involves multiple key technologies that significantly advance China's capabilities in gravitational wave science, low-temperature superconducting detector development, cosmic microwave background (CMB) data analysis, and site science [8] - There are currently three major gravitational wave detection experiment sites globally, with the other two located in Antarctica and the Atacama Desert in Chile, both led by the United States [8]

Group 1 - The Ali Cosmic Primordial Gravitational Wave Detection Experiment (AliCPT-1) has successfully achieved its first light observation, capturing clear images of radiation from the Moon and Jupiter in the 150GHz frequency band [1][2][5] - This experiment, led by the Institute of High Energy Physics of the Chinese Academy of Sciences, is China's first primordial gravitational wave detection initiative and marks a significant advancement in the field [1][4] - The successful observation is expected to provide a unique observational window for studying the origins of the universe and validating inflation theory, potentially allowing scientists to glimpse the "initial state" of the universe [4][5] Group 2 - The experiment is conducted at an altitude of 5250 meters in the Ali region of Tibet, which is considered an optimal location for observing primordial gravitational waves due to its dry and clean environment [1][4] - The detection of primordial gravitational waves is recognized globally as a major frontier in fundamental science, crucial for exploring quantum gravitational effects and enhancing cosmological research precision [4][5] - The completion of this experiment fills a gap in China's research capabilities in this area, complementing existing observational sites in the Southern Hemisphere, such as Antarctica and the Atacama Desert in Chile [5]