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SLAC is the world’s leading center for developing “ultrafast” X-ray, laser and electron beams that allow us to see atoms and molecules moving in just millionths of a billionth of a second. We can even create stop-action movies of these tiny events.

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This illustration shows how the first experiment at SLAC's Linac Coherent Light Source X-ray laser stripped away electrons from neon atoms. (SLAC National Accelerator Laboratory)
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Bringing ultrafast physics to structural biology has revealed the coordinated dance of molecules in unprecedented clarity, which could aid in the design of new...

molecular control
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The results should further our understanding of similar reactions with vital roles in chemistry, such as the production of vitamin D in our bodies.

UED transition state
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Chemical reactions often involve intermediate steps that are too fast and complex for us to see  – even using our most advanced scientific instruments...

This is a graphic representation of an intermediate chemical reaction. The image shows the chemical reaction, a laser, X-rays and a detector system.
News Release

After decades of effort, scientists have finally seen the process by which nature creates the oxygen we breathe using SLAC’s X-ray laser.

Photosystem II
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The award celebrates Huang’s achievements studying atom-scale physics with fast X-ray pulses.

Yijing Huang at Stanford University
News Release

Studying a material that even more closely resembles the composition of ice giants, researchers found that oxygen boosts the formation of diamond rain.

Diamond rain formation
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En route to record-breaking X-rays, SLAC’s Cryogenic team built a helium-refrigeration plant that lowers the LCLS-II accelerator to superconducting temperatures.

Images of frost and a thermometer superimposed over an aerial view of an accelerator building.
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Spiraling laser light reveals how topological insulators lose their ability to conduct electric current on their surfaces.

Against a black background, thin, glowing red wires at top impinge on the hexagonal surface of a translucent mass. Small white dots travel along the edges of the surface in two directions. Within the mass, two orange cones meet at their tips.
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An extension of the Stanford Research Computing Facility will host several data centers to handle the unprecedented data streams that will be produced by...

SRCF-II
SLAC Science Explained

Molecular movie-making is both an art and a science; the results let us watch how nature works on the smallest scales.

Molecular movie filmstrip.
News Release

The facility, LCLS-II, will soon sharpen our view of how nature works on ultrasmall, ultrafast scales, impacting everything from quantum devices to clean energy.

LCLS-II cooldown
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Researchers discover that a spot of molecular glue and a timely twist help a bacterial enzyme convert carbon dioxide into carbon compounds 20 times...

An illustration shows the pocket in an enzyme called ECR where the carbon fixing reaction takes place.