Archaea are small single-celled microorganisms (microbes) that form one of the three domains of cellular life, along with bacteria and eukaryotes. They do not possess a nucleus and therefore belong to ...

A research team has shown that methanogens, micro-organisms ubiquitous in low-oxygen environments like aquifers, soil and even permafrost, can propel their growth by dissolving calcium carbonate, one ...

The process by which plants and algae acquire sulfur—converting sulfate into sulfide—requires a lot of energy and produces harmful intermediates and byproducts that need to be immediately transformed.