(1998).ISO/media/photogal/graphics_preview/0311.jpg)
Title:[0311] Noctis LabyrinthusCaption:Noctis Labyrinthus is a complex of canyons at the western end of Valles Marineris. In this image taken from a Viking Orbiter at sunrise, the canyons are filled with bright mist, almost certainly made of water ice.
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Credit:NASA