It came from data collected by the Trace Gas Orbiter( TGO), part of the ExoMars mission operated by the European Space Agency( ESA) and its Russian counterpart, Roscosmos.... Among the arsenal of instruments on board the probe is the Fine Resolution Epithermal Neutron Detector( FREND), which can detect hydrogen, one of the two elements that make up water.... Water is the basis of life and essential for all the processes we know. New analyses of FREND's data show high levels of hydrogen at a si