The Linac Coherent Light Source at SLAC is the world’s first hard X-ray free-electron laser, or FEL, and one of the most complex light sources ever developed.

Menlo Park, Calif.--Scientists report today that they have taken a big step in determining what the first birds looked like more than 100 million years ago, when their relatives, the dinosaurs, still ruled the Earth.

A new SLAC test facility has passed two important milestones and is gearing up for experiments aimed at dramatically shrinking the size and cost of future particle accelerators.

Stanford physicist Matt Bellis deals in the infinitesimal. As a member of the BaBar collaboration based at SLAC, he studies what happens when an electron and a positron collide at certain energies.

The latest report on SESAME, a synchrotron light source that will be the first big international science center in the Middle East, says it is progressing both technically and financially on the road to its scheduled opening in 2015.

Menlo Park, Calif.—Glass, by definition, is amorphous; its atoms lack order and are arranged every which way.

"It takes a village," as Hillary Clinton famously wrote, "to raise a child."

Computer simulations have become an invaluable tool to study the formation of cosmic structures over an enormous range of scales, crucial aspects of the evolution of the Universe which cannot be directly observed

“Smaller, faster, cheaper" is Silicon Valley's mantra for progress. But as critical components shrink to near atomic dimensions, it’s becoming much more difficult for their developers to understand exactly how they operate before committing to product design and manufacturing.

In 1971, physicist Burton Richter of Stanford Linear Accelerator Center was building a new type of particle collider called a storage ring.