Buried for 2.6 Billion Years, Scientists Discover Ancient Trapped Water Feeding Strange Life Where Nothing Should Exist
Indian Defence Review • • science
Key Points:
- Scientists have discovered a global network of hydrogen-rich waters trapped deep within Earth's oldest Precambrian rocks, revealing a significant energy source that could sustain isolated microbial ecosystems for billions of years.
- The study, involving data from 19 mine sites across Canada, South Africa, and Scandinavia, found the oldest liquid water ever recorded near Timmins, Ontario, isolated for up to 2.64 billion years.
- Two chemical processes—radiolytic decomposition and serpentinization—generate substantial hydrogen underground, doubling previous global estimates of hydrogen production and expanding the recognized habitable volume of Earth's crust.
- This hydrogen supports deep microbial life independent of sunlight, suggesting extensive subsurface ecosystems with potentially vast genetic diversity rivaling surface life.
- The findings have astrobiological implications, indicating that similar hydrogen-producing processes could occur beneath the Martian surface, offering potential habitats for life on other planets.
