How to grow plants on Mars

Researchers find innovative way to improve Martian soil for the cultivation of future colonising Earthlings.

two plants growing in red sand. The plant on the left is much bigger
Observed growth differences between clover (Melilotus officinalis) inoculated with nodule forming bacteria Sinorhizobium meliloti (left) and a clover plant not inoculated when grown in Martian regolith. Credit: Harris et al., 2021, PLOS ONE, CC-BY 4.0