The appearance of free oxygen in the Earth’s atmosphere led to the Great Oxidation Event. This was triggered by cyanobacteria producing the oxygen which developed into multicellular forms as early as ...

It may have been unexpectedly easy for the air to become rich in oxygen. A new simulation of the rise of oxygen suggests that it was driven by the planet itself, and needed little help from living ...

The selective oxidation of C--H bonds using oxygen has become a much simpler and more sustainable endeavor, thanks to a novel manganese (Mn)-based catalyst. Consisting of reusable Mg6MnO8 ...