The stratosphere’s highly hostile environment offers a unique and relatively accessible setting to evaluate extremophilic adaptation for extraterrestrial colonization. The accelerating pace of the Martian project has underscored the need […]
Sample Return
Curiosity Astrobiology Rover Gets Stuck And Unstuck In ‘Atacama’
Earth planning date: Friday, May 1, 2026 Chile’s Atacama desert is the driest mid-latitude desert in the world, receiving only 15 millimeters (0.59 inches) of precipitation per year. Only the […]
New Sulfur-dependent Ecosystem In A Gas Vent In The Depths Of The Chilean Pacific
Unlike most similar emanations described to date, this one shows no evidence of methane emission or consumption. The absence of this molecule and its abundance of sulfur make it a […]
The Formation of Glycolamide on Interstellar Ices
For decades, scientists have searched interstellar space for the chemical seeds of life. In this issue of ACS Central Science, Kaiser and co-workers (1) offer a striking advance in that […]
Water World Genomics: Unlocking Ocean Secrets With eDNA
Editor’s note: with recent speculation about the potential habitability of other worlds and understanding the processes whereby other biospheres arise and evolve, thought needs to be given to developing sensor […]
Tricorder Tech: A Simple Filter Swap Could Advance Marine eDNA Biomonitoring
Editor’s note: with recent speculation about the potential habitability of other worlds and understanding the processes whereby other biospheres arise and evolve, thought needs to be given to developing sensor […]
Dew And Frost Do Not Serve As Water Sources For Rock-dwelling Organisms In The Dry Valleys Of Antarctica
Rock-dwelling chlorolichens and cyanobacteria provide most of the total biomass of the ice-free zone of Antarctica, i.e., the McMurdo Dry Valleys (MDV), and yet, the water sources of MDV are […]
Phenylobacterium ferrooxidans sp. nov., Isolated From A Sub-surface Geothermal Aquifer In Iceland
A novel bacterial strain, HK31-GT, was isolated from a subsurface geothermal aquifer (Hellisheidi, SW-Iceland) and was characterized using a polyphasic taxonomic approach. Phylogenetic analysis of 16S rRNA gene along with […]
Responses of Cyanobacterial Crusts and Microbial Communities to Extreme Environments of the Stratosphere
How microbial communities respond to extreme conditions in the stratosphere remains unclear.
Evidence For Cable Bacteria Inhabiting Deep In Anoxic Sediment Reveals A Novel Ecological Niche
Background Cable bacteria are filamentous sulphide-oxidisers capable of cm-scale electron transport. They are generally considered restricted to the upper few oxic–suboxic cm of marine sediments, where they couple sulphide oxidation […]
