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. […]

Will Curiosity Find New Clues to Ancient Martian Habitability, or Perhaps Even Life, at Hematite Ridge?

Hematite Ridge, as seen from near Curiosity’s landing site, a few kilometres away.Image Credit: NASA / JPL-Caltech / annotated by A. Fraeman

As the Curiosity rover gets ever closer to its major destination of Mount Sharp, there is an interesting feature there which has become a priority target, one which may help scientists […]