China’s Tianwen-2 Approaches Earth’s Quasi-Moon for Possible Asteroid Sample

China’s Tianwen-2 spacecraft is within about 12.5 miles of Kamo'oalewa, one of Earth's quasi-moons, to capture the first clear photo and potentially collect surface samples over a year-long co-orbital mission using anchor-and-attach or touch-and-go methods; success would make China the third nation to sample an asteroid, though the tiny, rapidly rotating target poses significant challenges.