Finger-like features visible in images from Mars may be streams of salty water spilling over the rims of craters, scientists believe.
By The Newsroom
Published 5th Aug 2011, 07:00 BST
The puzzling clusters of dark lines fade in winter and reappear in the spring. Pictures taken by the American space agency Nasa’s Mars Reconnaissance Orbiter spacecraft showed the markings on several steep slopes south of the Martian equator.
