Ancient sediments that once resided on a lake bed and the ocean floor show sulfur isotope ratios unlike those found in other samples from the same time, calling into question accepted ideas about when ...

What: Scientists discovered a bacterium (Hydrogenobacter) in Yellowstone that breathes both oxygen (aerobic) and elemental ...

Sedimentary rocks created more than 2.4 billion years ago sometimes have an unusual sulfur isotope composition thought to be caused by the action of ultra violet light on volcanically produced sulfur ...

New research indicates that early Martian volcanoes may have emitted reactive sulfur gases that warmed the planet and supported conditions suitable for microbial life. Although scientists are still ...

Researchers from the University of Vienna discovered MISO bacteria that use iron minerals to oxidize toxic sulfide, creating energy and producing sulfate. This biological process reshapes how ...

Proceedings of the National Academy of Sciences of the United States of America, Vol. 109, No. 45 (November 6, 2012), pp. 18300-18305 (6 pages) Carbonates from approximately 2.3-2.1 billion years ago ...