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ancient microbial MartiansPopular Mechanics
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82% Informative
NASA 's Perseverance rover may have found evidence of past life on Mars .
The rover has spent more than $5 billion on finding evidence that life once existed on the Red Planet .
The rock in question features two vertical veins of calcium sulfate that likely formed from past water.
The presence of millimeter-sized olivine crystals may explain how past volcanic activity could produce this geologic phenomena without relying on microbes.
VR Score
82
Informative language
81
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29
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English
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