The first example relied on an earlier iteration of the irradiation setup to examine seven The exploration of sulfite and iron photoredox chemistry cast our attention to Venus, where both iron and sulfur are present in abundance. We worked with the Tosca Lab in order to explore the production, lifetime, and ultraviolet absorbance properties of ironsulfur minerals in the clouds of Venus, and discovered that one particular iron-sulfur mineral, predicted to be kinetically stable through the upper cloud layer, is a candidate for the unknown ultraviolet absorber observed in the clouds of Venus. More recently, we used an updated version of StarLab, as shown in Figure , to link the carboxysulfitic prebiotic reaction network, first proposed by Liu et al., to specific geochemical environments. In this study, we determined the rate law for carbon reduction using solvated electrons, which are produced through electron photodetachment from sulfite, and measured the corresponding rate constants as a function of pH. Based on the observed rate of formate production, we suggested that this chemistry is most compatible with mildly alkaline aqueous environments exposed to UV radiation and in proximity to sources of both SO 2 and CO 2 . Following kinetic calculations, we then determined approximate timescales for this chemistry on both the Archean Earth and early Mars. The three examples outlined here represent the first of many studies that will all have the goal of bridging the gap between experiments performed in the laboratory and the geochemical environment.