ESA discovers a water reserve on Mars as large as the Red Sea

Beneath the surface of Medusae Fossae lies an imposing reservoir of water, according to data collected by the European Space Agency's radar. A Martian geological formation could well contain a very large amount of water in the form of ice – enough to cover the entire planet under 2.7 m of water if it melted! ESA's MARSIS radar has revealed that the Medusae Fossae geological formation on Mars contains a huge reserve of water, similar in size to t…