Cyanobacteria, as they still exist today, were the first organisms to carry out photosynthesis and release oxygen. Produced ...

Researchers uncovered that trace compounds like nickel and urea may have delayed Earth’s oxygenation for millions of years. Experiments mimicking early Earth revealed how their concentrations ...

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