A bacterium that uses sulfide as an energy source to metabolize solid iron oxides has been discovered, revealing a biological ...

An international team of scientists led by microbiologists Marc Mussmann and Alexander Loy from the University of Vienna has ...

A new transition-metal oxide crystal that reversibly and repeatedly absorbs and releases oxygen could be ideal for use in ...

Tests showed that as a zinc-air battery cathode, CoFe-2DSA achieved a power density of 229.6 mW/cm², a specific capacity of ...

Did NASA announce life on Mars? NASAs Perseverance rover drilled a mudstone core showing minerals and textures, vivianite and ...

Plant and Soil, Vol. 201, No. 1 (April (I) 1998), pp. 137-147 (11 pages) Iron has a pivotal and dual role in free radical chemistry in all organisms. On the one hand, free Fe can participate in Fenton ...

Scientists found a microbe in a Yellowstone hot spring, Aquificales, that can use oxygen and sulfur at the same time to ...

A biosignature is any characteristic, element, molecule, substance or feature that serves as evidence for past or present ...

Researchers defined the structure of a substrate-bound iron 2-oxoglutarate (Fe/2OG) enzyme to explore whether these enzymes could be used to create a wide array of molecules. They saw that Fe/2OG ...

Just over a year ago, NASA made a remarkable announcement. The Perseverance rover had found potential signs of ancient life on Mars. Now, the technical details behind that discovery have been ...

We may have ancient magma oceans to thank for Earth’s breathable air. Shortly after the planet’s formation about 4.5 billion years ago, the mantle somehow became much richer in oxygen than it was ...