NASA’s Mars rover Curiosity keeps on making interesting discoveries during its slow journey across the desert landscape. Now it has investigated layers of sedimentary rocks in what was a lake a few billions years ago. That is also a clear indication that the Red Planet also had an ocean in that distant era. It must thus have been a warmer and wetter time than what astronomers previously thought. Read more here — link >>>
Layers of sedimentary rock that form a part of Mount Sharp in the Gale Crater.
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