The second phase of China's deep-space observation radar network project, dubbed "China Compound Eye", began construction in Yunyang county, Chongqing on Tuesday.

Covering an area of over 300 mu (20 hectares), the second phase of the project aims to construct 25 radars with a 30-meter aperture by 2025. Once completed, it will have the strongest comprehensive performance in the world for a deep-space exploration radar network, enabling the detection of asteroids tens of millions of kilometers away, and providing crucial support for China's defense against near-Earth asteroid impact and planetary science research.