任务档案 · MISSION
Tianwen-2
中国航天科技集团 (CASC) · 长征三号乙增强型 (CZ-3B/E) · 2 号发射工位 (LC-2)

成功
任务成功
任务简介
天问二号是中国计划中的小行星采样返回与彗星环绕探测任务,预计于2025年5月发射。该航天器将造访近地小行星469219 Kamoʻoalewa(2016 HO3),采用触即走和锚定钻取两种方式采集其表面样本。发射约2.5年后将样本送回地球,主航天器随后继续前往探测主带彗星311P/PANSTARRS,预计在2030年代中期抵达。
原文
Tianwen-2 is a planned Chinese asteroid sample return and comet orbiter mission due for launch in May 2025. The spacecraft will visit the Near Earth asteroid 469219 Kamoʻoalewa (2016 HO3), collecting samples from its surface using both touch-and-go and anchor-and-drill approaches. It will return the samples back to Earth around 2.5 years after launch, with the main spacecraft proceeding to visit the main-belt comet 311P/PANSTARRS in the mid-2030s.
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