Sentences with phrase «traces of life possibly»
Marshall and his colleagues proved the concept of testing for vanadium on known microfossils with acknowledged biological origins on Earth — organic microfossils called acritarchs that might not be far from the kinds of traces of life possibly existing on the Red Planet.
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We can trace their DNA back through billions, possibly trillions, of binary divisions, back to the dawn of life itself.
These layered sediments indicates the presence of liquid water in the past — and possibly traces of ancient life.