Scientists demonstrated X-ray four-wave mixing to track correlated electron motion, revealing how energy and information move ...

Scientists at the Paul Scherrer Institute PSI have, for the first time, demonstrated a technique that synchronizes ultrashort ...

An experiment on the side of an extinct volcano in Mexico involving gamma rays is helping scientists answer a fundamental question in physics: Is the speed of light the same throughout the universe?

PITTSBURGH (KDKA) -- Without light, we can't have sight. We see objects because of how light interacts with those objects, our eyes pick up that light, and our brains interpret it. This seems rather ...

Picture of the experimental hall showing the target interaction chamber on the left, the collection vacuum tube and the detector on the right side. Credit: Gianluca Gregori. Researchers at the ...

Dark matter, a type of matter that does not emit, absorb, or reflect light, is predicted to account for most of the universe's mass. While theoretical predictions hint at its abundance, detecting this ...

When the massive upgrade at the Advanced Photon Source (APS) at the U.S. Department of Energy’s (DOE) Argonne National Laboratory is completed later this year, experiments at the powerful X-ray light ...