Terrestrial meander migration rates are used to estimate a formation timescale of decades for Jezero delta on Mars.
Three billion years ago, on Mars, the shores of an ocean may have been flooded by a mega-tsunami. Now the crater left by the bolide impact that probably triggered the tsunami has been identified.
Researchers find that past studies underestimate the friction meltwater channels exert on glaciers by orders of magnitude.
Dried-up rivers on Mars suggest that the planet was wet in the not-too-distant past.
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.
Researchers present maps of hydrogen and sulfur that hint at water locked in hydrous sulfates in Mars's southern hemispheric soil.