Illustration
The ultrafast, ultrabright X-ray pulses of the Linac Coherent Light Source (LCLS) have enabled unprecedented views of a catalyst in action, an important step...

Photograph
Undulator Hall with soft X-ray undulators to the left and hard-X-ray undulators to the right. Details

Photograph
LCLS Undulator Hall with both soft X-ray undulators, left, and hard X-ray undulators, right.

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

Illustration
A cross section of the LCLS-II accelerator showing where liquid and gaseous helium flow in and out of the system.
