China’s asteroid hunter closes in on target after 400-day trip, though size is a surprise
China's Tianwen-2 spacecraft has captured its first close-up image of near-Earth asteroid 2016 HO3, revealing it is smaller than expected. The China National Space Administration (CNSA) announced on Monday that the probe took images from approximately 20 kilometers away during its approach.

Briefing Summary
AI-generatedChina's Tianwen-2 spacecraft has captured its first close-up image of near-Earth asteroid 2016 HO3, revealing it is smaller than expected. The China National Space Administration (CNSA) announced on Monday that the probe took images from approximately 20 kilometers away during its approach. This discovery presents a challenge for the mission's sample-return objective, which scientists anticipate will be more difficult than previous Japanese and American missions due to the asteroid's reduced size. The spacecraft is now close enough to commence scientific exploration of the asteroid.
Article analysis
Model · rule-basedKey claims
5 extractedThe spacecraft is close enough to begin scientific exploration of the asteroid.
Tianwen-2 probe took the image of asteroid 2016 HO3 from about 20km on July 2, 2026.
China’s Tianwen-2 spacecraft has captured its first close-up image of a near-Earth asteroid.
The smaller size of the asteroid will make the sample-return task far more difficult.
The asteroid 2016 HO3 is smaller than anticipated.