
China eyes 2031 Mars sample return with streamlined Tianwen-3 mission
China plans to launch Tianwen-3 in 2028 to drill a Mars sample (about 18 ounces) with a lander, then return it to Earth by 2031 using an accompanying orbiter, a simpler and cheaper approach than NASA’s multi-stage Mars Sample Return. The move comes amid budget debates and U.S.-China space competition, and officials frame it as open international cooperation.













