Hephaestus Fossae

The channels in this image, taken by NASA 2001 Mars Odyssey spacecraft, are called Hephaestus Fossae and were most likely formed by lava flow and erosion rather than being eroded by water.

The channels in this image, taken by NASA 2001 Mars Odyssey spacecraft, are called Hephaestus Fossae and were most likely formed by lava flow and erosion rather than being eroded by water.