吉林一号高分03D06
China is conducting its first asteroid sample return mission, Tianwen-2, towards asteroid 2016HO3/469219 Kamoʻoalewa, with a planned arrival in the summer of 2026.
Tianwen-2 is planned to return collected asteroid samples to Earth around 2029 during a flyby.
China is currently flying the Tianwen-2 asteroid sample return mission en route to asteroid 2016 HO3 (469219 Kamoʻoalewa) with a planned arrival in summer 2026 to collect between 200 and 1,000 grams of samples.
Tianwen-2 is planned to return its collected asteroid samples to Earth around 2029 during a flyby.
China’s Tianwen-2 asteroid sample-return mission is en route to asteroid 2016 HO3 (469219 Kamoʻoalewa) with a planned arrival in the summer of 2026 to collect between 200 and 1,000 grams of samples.
On July 1, 2021, the Chinese Communist Party celebrated its centennial with the successful landing of the Tianwen-1 Mars rover.
China plans to launch its Tianwen-3 sample return mission as soon as 2028, aiming to return samples in 2031.
The Tianwen-3 mission is designed to collect samples in the vicinity of the lander.
The Long March 3B is expected to launch the Tianwen-2 near-Earth asteroid sample return mission in May 2025.
The second phase (2028–2035) aims to conduct advanced space missions including the Tianwen-4 mission to Jupiter, solar system boundary exploration, and the International Lunar Research Station (ILRS).
China plans to launch the Tianwen-2 near-Earth asteroid sampling and comet rendezvous mission in 2025.
China plans to launch the Tianwen-3 Mars sample return mission around 2030.
The Long March 5 is China’s largest, most powerful operational launch vehicle and has launched major missions including Chang’e-5 and the Tianwen-1 Mars mission.
China is scheduled to launch the Tianwen-2 asteroid sample return mission in 2025 targeting near-Earth object 469219 Kamoʻoalewa.
China’s Tianwen-3 mission architecture uses two Long March 5 launches to carry a lander and ascent vehicle on one launch and an orbiter and return module on the other.
Key technical challenges for Tianwen-3 include obtaining rock samples, taking off from the surface of Mars, performing a rendezvous and docking in Mars orbit, and transferring samples to a reentry module, all requiring a high degree of autonomy.
The Tianwen-3 mission targets delivering around 0.5 kg of Martian samples to Earth.
Tianwen-3 entry, descent, and landing will build on technology used for the Tianwen-1 rover landing.
Tianwen-3 landing site constraints include being at least 2,0 m and preferably 3,0 m below the average global Martian elevation to provide more atmosphere for descent braking.
The Long March 5 has successfully launched the DFH-5 Shijian-20, China’s Tianwen-1 Mars orbiter and rover mission, and the 2020 Chang’e-5 lunar sample return mission.