Data From Spirit Rover Provides Evidence for Acid Fog on Ancient Mars

False-color mosaic of Cumberland Ridge, with pie charts representing iron-bearing mineralogy. Image Credit: S. Cole, PhD thesis; background image: NASA/JPL/Cornell/Arizona State University; Moessbauer values from Morris et al. 2008 (doi: 10.1029/2008JE003201)

The various rover and lander missions on Mars have provided unprecedented glimpses into the planet’s past, including geological history and environmental conditions. In […]