Interest in extracting mineral resources from the seafloor through deep‐sea mining has
accelerated in the past decade, driven by consumer demand for various metals like zinc, cobalt, …

Earth’s subsurface is often isolated from phototrophic energy sources and characterized by
chemotrophic modes of life. These environments are often oligotrophic and limited in …

Some of the coldest and driest permafrost soils on Earth are located in the high-elevation
McMurdo Dry Valleys (MDVs) of Antarctica, but little is known about the permafrost microbial …

FIGURE 4. Cumulative volumetric energy densities of redox reactions per site based on
environmental concentrations of variables in each reaction (Table 1).(Left) Shows the percent …

Cryoenvironments on Earth represent a natural laboratory in which we can observe the
natural constraints to microbial activity and survival at low temperature. Microorganisms in sub-…

The microbial ecology and activity of serpentine deposits and associated hydrated minerals
are largely unknown. Previous research has largely focused on microbial communities in …

Permafrost in the high elevation McMurdo Dry Valleys of Antarctica ranks among the driest
and coldest on Earth. Permafrost soils appear to be largely inhospitable to active microbial life…

The permafrost soils of the high elevation McMurdo Dry Valleys are the most cold, desiccating
and oligotrophic on Earth. Rhodococcus sp. JG3 is one of very few bacterial isolates from …

Significant progress is being made in the development of the next generation of low cost life
detection instrumentation with much smaller size, mass and energy requirements. Here, we …

The marine lithospheric subsurface is one of the largest biospheres on Earth; however, little
is known about the identity and ecological function of microorganisms found in low …