
The icy steps on these Mars plains may be ancient wind-blown dust
A high-definition Martian camera spotted icy ridges on the Red Planet interlaced with channels, which may show ancient proof of water or lava.
Mars, the Red Planet, is the fourth planet from the sun.
Related Topics: Curiosity Mars Rover Mission, ExoMars, India Mars Orbiter Mission, Mars Rover Opportunity, Maven Mars Mission