Earth microbes survive simulated conditions of Saturn moon’s ocean
Experiment suggests organisms could live in harsh environment under Enceladus’s icy crust, strengthening possibility moon could support life
TL;DR
- Microbes thriving near deep-sea hydrothermal vents in Japan have survived conditions mimicking Enceladus's subsurface ocean.
- The simulated Enceladus ocean environment was highly alkaline and rich in hydrogen, a product of water-rock reactions.
- These methanogenic microbes adapted their metabolism to survive in the simulated environment, even with low carbon dioxide concentrations.
- The findings suggest that Enceladus may be habitable, as these Earth organisms demonstrate a capacity for survival in its extreme conditions.
- Future missions, like the European Space Agency's proposed L4 mission, aim to directly search for biosignatures in Enceladus's plumes.