Olfactory-based powered descent guidance for #Mars methane plume exploration in long-time-average wind environment: https://www.sciencedirect.com/science/article/pii/S0273117724009773 -> "an olfactory-based powered descent guidance method that enable a lander to autonomously locate and target the vent source of any methane plume in long-time-average wind environment on Mars." (Bad blunder in the first reference, BTW: the paper was on Mars Express, not Curiosity, observations!)