Long March 10 (), also known as the “Next Generation crewed launch vehicle” () or “921 rocket” (), is a Chinese super-heavy carrier rocket for crewed lunar missions that is currently under development. The nickname "921" refers to the founding date of China's human spaceflight program. Like the Long March 5, it uses 5-meter (16.4 ft) diameter rocket bodies and YF-100K engines, although with 7 engines on each of 3 cores. The launch weight is 2187 tonnes, delivering 25 tonnes into trans-lunar injection. The proposed crewed lunar mission uses two rockets; the crewed spacecraft and lunar landing stack launch separately and rendezvous in lunar orbit. Development was announced at the 2020 China Space Conference. As of 2022, the first flight of this triple-cored rocket is targeted for 2027. See also Long March 9 Falcon Heavy China National Space Administration Shenzhou spacecraft Space program of China Comparison of orbital launchers families Comparison of orbital launch systems References Long March (rocket family) Rocket families Space launch vehicles of China Chinese brands