ExoMars discovers hidden water in Mars' Grand Canyon
Paris (ESA) Dec 17, 2021
The ESA-Roscosmos ExoMars Trace Gas Orbiter has spotted significant amounts of water at the heart of Mars' dramatic canyon system, Valles Marineris. The water, which is hidden beneath Mars' surface, was found by the Trace Gas Orbiter (TGO)'s FREND instrument, which is mapping the hydrogen - a measure of water content - in the uppermost metre of Mars' soil. While water is known to exi