It is generally accepted that there is a vast, well-populated biosphere in the subsurface, but the depth limit of the terrestrial biosphere has yet to be determined, largely because of […]
Editor’s note: this is a response to Oxygen Produced In The Deep Sea Raises Questions About Extraterrestrial Life, Boston University 27 August 2024
One of the first organisms to appear on Earth was cyanobacteria, which carried out oxygenic photosynthesis.
Iron-rich minerals, such as hematite (α-Fe2O3), are prominent constituents of the Martian surface; they are considered to be potential indicators of past aqueous activity and habitability.
There is a high demand globally of critical metals, and many countries want to try extracting these sought-after metals from the seabed. An international study, which has discovered large numbers […]
On planet Earth, the inner part of cave systems represents an extreme and isolated environment, characterized by relatively stable microclimatic conditions, nutrient limitation and protection from external stressors such as […]
Introduction: The presence of hypersaline brines on other planets and moons in the inner and outer Solar System has been well established.
Viruses play essential roles in shaping the structure and function of microbial communities, including those inhabiting extreme environments.
How natural environments transition from uninhabited to inhabited is an incompletely understood question in ecology.
Cells of Serratia liquefaciens were grown on trypticase soy agar (TSA) for 28 d under Martian conditions of 7 mbar, 0°C, and CO2-enriched anoxic atmospheres (called Mars low-PTA conditions).
