Tianwen-2
Tianwen-2 (Chinese: 天问二号) is a planned Chinese asteroid sample return and comet exploration mission that is currently under development. Tianwen-2 was originally known as ZhengHe.
| Mission type | Asteroid sample return Comet orbiter/lander |
|---|---|
| Operator | CNSA |
| Mission duration | 10 years (planned) |
| Spacecraft properties | |
| Manufacturer | CAST |
| Launch mass | ≤2,000 kg (4,400 lb) |
| Start of mission | |
| Launch date | May 2025 (planned) |
| Rocket | Long March 3B |
| Launch site | Xichang |
| Contractor | CASC |
| 469219 Kamoʻoalewa orbiter | |
| Sample mass | ≥100 g (0.2 lb) |
| 311P/PANSTARRS orbiter | |
| Orbital insertion | 2034 |
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