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Mineral-eating intraterrestrial bacteria may give clues on extraterrestrial life – MINING.COM –

These bacteria, which spread out and form biofilms, are being tested at a former gold mine in South Dakota, USA.



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Once below-ground, the experts cultivated biofilms on native rocks rich in iron and sulphur-bearing minerals. After six months, the team analyzed the microbial composition and physical characteristics of newly grown biofilms, as well as their distributions using microscopy, spectroscopy and spatial modelling approaches.
Extraterrestrial life could exist in subsurface iron and sulphur-rich environments similar to that of the Deep Mine Microbial Observatory
The analyses, which were published in the…

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