Animation
In photosystem II, the water-splitting center cycles through four stable states

Illustration
At LCLS, crystallized ribosomes travel through a capillary into the interaction region, where they are zapped with a beam of X-rays.


Illustration
This image shows the SARS-CoV-2 virus's main protease, Mpro, and two strands of a human protein, called NEMO.

Animation
Now that the cavities have been cooled, the next step is to pump them with more than a megawatt of...
