Extinct ‘extra-terrestrial equivalent of the Rhine’ spotted on Mars
‘Extra-terrestrial equivalent of the Rhine’: Astronomers uncover first evidence of a major RIVER on Mars that flowed across the surface of the Red Planet 3.7 BILLION years ago Astronomers studied a 650ft cliff face in a crater on the surface of Mars It had marks which revealed a river flowed there around 3.7billion years ago … Read more