How does one learn more about the characteristics of the Martian atmospheric chemistry and climate system while seated 56 million plus kilometres away? Using MAX IV’s HIPPIE beamline, an international research group studied the surface solvation of salts from Earth’s Qaidam Basin, which bear close resemblance to Martian salts and how these influence the respective planet’s surface. The work also establishes the feasibility of the APXPS technique for future studies with Martian salts.