Xie Gengxin and a replica of his lunar garden Donna Lu
China’s Chang’e 4 lunar lander captivated global attention when a cotton seed on board became the first plant ever to germinate on another world – and now the engineer behind this moon garden has revealed just how it was done.
Cotton, Arabidopsis, potato and rape seeds, as well as yeast and fruit fly eggs, were all inside a 2.6-kilogram mini biosphere when Chang’e 4 landed on the far side of the moon in January 2019.
Months of uncertainty and planning led to the successful mission, says Xie…

![Small dome in the Compton-Belkovich region (61.33 ?N, 99.68 ?E). Evidence indicates a volcanic origin for this and other intriguing features in the region. Incidence angle is 64?, Sun is from the SSW, image is ~510 m across. NAC image number M139238146L [NASA/GSFC/Arizona State University].](https://images.newscientistbeta.com/wp-content/uploads/2023/07/07172644/SEI_163208069.jpg)

