Martian Life's Last Stand?...
Image: NASA/JPL-Caltech A... ...A maze-like system of deep valleys in Mars called Noctis Labyrinthus ("the labyrinth of the night"... ...m in the presence of water. [...] The Noctis Labyrinthus smectites are believed to have formed...
https://www.neatorama.com/2011/09/28/martian-lifes-last-stand/
