Now researchers have found the chemical signatures of hydrated minerals on these slopes, confirming that explanation. (scientificamerican.com)
Some of the water may be locked up as hydrated minerals in rocks. (sciencemag.org)
«On Earth and on Mars, we know that the presence of phyllosilicates — clays — or other hydrated minerals indicates formation in liquid water,» Jorge Núñez, who led the study, said in a NASA press release. (businessinsider.com)