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China’s Longjiang-1 (2018)

Artist’s depiction of Longjiang-1 and -2.
Artist’s depiction of Longjiang-1 and -2. Image: Harbin Institute of Technology

As part of China’s Chang’e 4 mission to the Moon, two microsatellites, Longjiang-1 and Longjiang-2, were launched in May 2018 on missions to conduct ultra long-wave astronomical observations in lunar orbit. Longjiang-2 reached its destination, but Longjiang-1 experienced problems that prevented it from leaving Earth orbit.