China's Tianwen-2 Space Probe Reaches Earth Quasi-Moon, the Asteroid Kamo'oalewa
8 hours ago
- #Asteroid Exploration
- #Space Science
- #Sample Return Mission
- China's Tianwen-2 asteroid probe reached asteroid Kamo'oalewa after a 400-day, 1-billion-km journey.
- The probe captured first images of Kamo'oalewa from 20 km, planning detailed observations of its shape, composition, and structure.
- Sampling is challenging due to the asteroid's small size (41m diameter), fast rotation, and limited contact windows.
- If successful, sample return in 2027 would follow achievements by Japan and NASA, offering clues to solar system formation.
- Kamo'oalewa's origin is debated: previously thought a lunar fragment, but recent research suggests it may be an LL chondrite meteorite from the asteroid belt.
- Tianwen-2 is equipped with multiple cameras, including a detachable one for sampling, requiring precise orientation adjustments.