Oxygen isotopic evidence that Gale crater, Mars, was home to an Early Hesperian water reservoir that underwent significant evaporation. - Hofmann AE; Archer PD Jr; McAdam AC; Sutter B; Bristow TF; Eiler JM; Webster CR; Flesch GJ; Fraeman AA; Franz HB; House CH; Rampe EB; et al. (Proceedings of the National Academy of Sciences of the United States of America, 2025)