Signatures of ice-free ancient ponds and lakes found on Mars
Researchers have discovered two sets of ancient wave ripples on Mars, signatures of long-dried bodies of water preserved in the rock record. Wave ripples are small undulations in the sandy shores of ...
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The Microbes On This Two-Billion-Year-Old Rock Are Still Alive
In this particular case, the microbes in question are so old could help us learn the truth about the origins of our universe.