ZME Science on MSN17d
Curiosity Rover Uncovers 3.7-Billion-Year-Old Ripples That Suggest Mars Once Had Ice-Free LakesAncient ripples suggest a warmer, wetter past for the Red Planet that supported open water on its surface.
The 3.7-billion-year-old formations in the planet's Gale Crater suggest the presence of long-gone bodies of liquid water, with no ice covering the surface ...
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