Water-carved valleys may be relatively young, challenging assumptions about the history of the Red Planet's climate.
Hydrology and fluvial processes
Reconstructing Catastrophic Floods on Earth and Mars
A new theoretical model suggests that ancient floods that carved canyons on Earth and Mars may have been much smaller but lasted longer than previously thought.
Water Beneath the Surface of Mars, Bound Up in Sulfates
Researchers present maps of hydrogen and sulfur that hint at water locked in hydrous sulfates in Mars's southern hemispheric soil.
