How XFELO works Electron pulses (blue beam) enter the undulator (row of silver bars) at the top left. X-ray pulses (red beam) are created in the undulator and then reflected back and forth by mirrors.

Researchers have announced an important step in the development of a next-gen technology for making X-ray free-electron laser pulses brighter and more stable: They used precisely aligned mirrors made ...

At particle accelerator facilities around the world, scientists rely on powerful X-rays to reveal the structure and behavior of atoms and molecules. Now, researchers from the Department of Energy's ...

Gardiner's frogs from the Seychelles islands, one of the smallest frogs in the world, do not possess a middle ear with an eardrum yet can croak themselves, and hear other frogs. An international team ...