Cyanobacteria, as they still exist today, were the first organisms to carry out photosynthesis and release oxygen. Produced in primeval oceans about 2.5 billion years ago, this oxygen accumulated in ...

For the first time, researchers have managed to isolate and directly observe individual oxygen atoms inside liquid water, catching a substance that usually hides behind the familiar H 2 O formula in ...

Images: Carolin Dreher, Jeremiah Shuster Scanning electron microscope images of the spherical cyanobacteria Synechococcus sp.

Carolin L. Dreher, Olaf A. Cirpka, Manuel Schad Kurt O. Konhauser, Andreas Kappler: Survival of cyanobacteria and mitigation of Fe (II) toxicity effects in a silica-rich Archean ocean. Nature ...