3 ms·

Top center/right area of this image definitely looks like a place where water/rivers/streams once ran. But I'm no geologist and these images could be deceiving.

• Achshar 14y ago
  Water streams or lava streams. But mars has been volcanicaly inactive for a long time now, and i am not sure which happened last, water flow or lava flow.
• papalalu 14y ago
  or wind.