Comment by matheweis

> Mars’ atmosphere is 96% carbon dioxide. MOXIE works by separating oxygen atoms from carbon dioxide molecules, which are made up of one carbon atom and two oxygen atoms. A waste product, carbon monoxide, is emitted into the Martian atmosphere.

That doesn’t seem like a process you’d want to scale. I wonder why they didn’t go for the process that splits CO2 into O2 and pure carbon? https://www.nature.com/articles/s41467-019-08824-8