Introduction: Ancient cryospheric environments may preserve overlooked reservoirs of antimicrobial resistance (AMR) and bioactive potential. This study reports the first whole-genome sequencing and functional characterization of Psychrobacter sp. SC65A.3 isolated […]
permafrost
CRREL Researchers Discover New Microbe Species Frozen In Alaskan Permafrost
Research microbiologists at the U.S. Army Engineer Research and Development Center’s Cold Regions Research and Engineering Laboratory (CRREL) recently discovered 26 new species of microorganisms.
Characterizing Microbial Communities in >7000- and >180,000-Year-Old Antarctic Permafrost Using a Low-Biomass Decontamination Protocol
The McMurdo Dry Valleys may harbor diverse surface microbial communities, yet little is known about subsurface microorganisms in permafrost and their potential for paleoecological reconstruction.
Humidity Enhancement in Dry Permafrost: The Effects of Temperature Cycles on Habitability
The search for life in the solar system often focuses on water and on environments where habitable conditions exist, persistently or occasionally.
Earth to Mars: A Protocol for Characterizing Permafrost in the Context of Climate Change as an Analog for Extraplanetary Exploration
Permafrost is important from an exobiology and climate change perspective. It serves as an analog for extraplanetary exploration, and it threatens to emit globally significant amounts of greenhouse gases as […]
Dale Andersen’s Astrobiology Antarctic Research: Permafrost And Ground-ice Conditions in the Untersee Oasis, Queen Maud Land, East Antarctica (Paper)
Keith’s note: Astrobiologist Dale Andersen is back in Antarctica at Lake Untersee in October-December 2024 for another field season of research (preview). Dale’s work is coordinated through the SETI Institute. […]
Prevalence of the Calvin-Benson-Bassham Cycle in Chemolithoautotrophic Psychrophiles and the Potential for Cold-adapted Rubisco
The act of fixing inorganic carbon into the biosphere is largely facilitated by one enzyme, Rubisco. Beyond well-studied plants and cyanobacteria, many bacteria use Rubisco for chemolithoautotrophy in extreme environments […]
Active Microbiota Persist in Dry Permafrost and Active Layer from Elephant Head, AntarcticaI
Dry permafrost is a challenging environment for microbial life due to cold, dry, and often oligotrophic conditions. In 2016, Elephant Head, Antarctica, was confirmed as the second site on Earth […]
Preserving Our Home World’s Cryosphere: World Meteorological Organization
Editor’s note: The Astrobiology community is all excited about two missions that wil; explore the ice worlds orbiting Jupiter with a focus of understanding their potential to host habitable – […]
Why Is Methane Seeping on Mars? NASA Scientists Have New Ideas
A recent paper may help explain why a portable chemistry lab on NASA’s Curiosity rover has continually sniffed out traces of the gas near the surface of Gale Crater.
