The Mars sample return mission is scheduled for launch around 2028, with the goal of returning no less than 500 grams of Martian samples to Earth by around 2031. BEIJING - China's mission to retrieve samples from Mars will advance to the flight model development phase within this year, Liu Jizhong, chief designer of the Tianwen 3 mission, said on Thursday. Building on the preliminary technical research and de... [1666 chars]
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