Using the SLAC National Accelerator Laboratory’s Linac Coherent Light Source – the world’s most powerful X-ray laser, a multinational group of scientists was able to take detailed snapshots of photosynthesis in action as it splits water into oxygen, protons and electrons. The oxygen-evolving complex (OEC) of photosystem II cycles through five states, where four electrons are sequentially extracted from the OEC in four light–driven,...
