(Stellaris) Just terraformed Mars, realized it had this cute little easter egg.

I like how they can still find its rovers and read their names, even now that it's a gorgeous continental planet and future agri-world (thanks to the Guilli's Planet Modifiers and Features mod which can populate a terraformed world with modifiers favoring a particular district type), with the rovers all overgrown by forest and rusted by oxygen and rain. The terraformers must have found Opportunity and preserved it or something.