Microbes may have lived underground for just a billion years - study
The findings provide context for Earth’s deep biosphere – one of the least explored and understood environments on the planet.
Microorganism-related calcite from a deep fracture in Swedish granite. This kind of mineral related biosignatures where used as one part of this new study to look for ancient habitable conditions at depth(photo credit: COURTESY OF HENRIK DRAKE)ByJERUSALEM POST STAFF
