NASA spacecraft called ‘Messenger’

In the last week of March 2012, a NASA spacecraft called ‘Messenger’ discovered further evidence for the existence of water ice at Mercury's poles. How the probability of ICE arose on Mercury Poles? Earlier, NASA’s work exposed patches near Mercury's poles that strongly reflect radar -a characteristic of ice. Now, the Messenger probe has shown that these radar-bright patches line up precisely with the shadowed craters.