Mars could have enough water stored underground to cover the planet’s surface, scientists say Sky NewsUnderground reservoir on Mars could fill oceans on the planet’s surface, study finds CNNNew hope of finding life on Mars after indication of water, scientists say The GuardianNew study suggests ocean of water lies beneath Mars’s surface Al Jazeera EnglishPresence of Liquid Water Most Probable Explanation for Data Collected by Mars Lander Scripps Institution of Oceanography