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NASA's Curiosity Mars rover discovers evidence of ripples from an ancient Red Planet lake (images)
The ripples suggest that the lake was free of ice at one point.
Fly Over Mars' 'Noctis Labyrinthus' In This Visualization From Spacecraft Data
Data from the Mars Express orbiter has been used to create a visualization of "a vast system of deep and steep valleys that stretches out for around 1190 km," on Mars called Noctis Labyrinthus, ...
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Fly Over The 'Grand Canyon' Of Mars In High-Resolution Orbiter Imagery
Valles Marineris in imagery captured the Mars Reconnaissance Orbiter. Global topography: NASA/GSFC CTX global mosaic: NASA/MSSS/Caltech/ CTX topography: NASA/MSSS/USGS HiRISE: NASA/U.Arizona/USGS/Amaz ...