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The Linac Coherent Light Source at SLAC, the world’s first hard X-ray free-electron laser, takes X-ray snapshots of atoms and molecules at work, revealing fundamental processes in materials, technology and living things.

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Rooftop view of Linac Coherent Light Source (LCLS)

News Feature
For decades, materials scientists have focused on materials that are relatively balanced and unchanging – but not Yijing Huang, a postdoctoral scholar at the...
Yijing Huang at Stanford University
Illustration
At the Matter in Extreme Conditions (MEC) instrument at SLAC’s Linac Coherent Light Source (LCLS) scientists provided the first direct, high-fidelity view of how...
MEC silicon
News Feature
Silicon, an element abundant in Earth’s crust, is currently the most widely used semiconductor material and is important in fields like engineering, geophysics and...
MEC silicon
Illustration
A SLAC-led team has invented a method, called XLEAP, that generates powerful low-energy X-ray laser pulses that are only 280 attoseconds, or billionths of...
XLEAP illustration
Photograph
SLAC’s Linac Coherent Light Source (LCLS) Near Experimental Hall building at sunrise with Stanford University Hoover Tower in the background.
SLAC’s Linac Coherent Light Source (LCLS) Near Experimental Hall building at sunrise with Stanford University Hoover Tower in the background.
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...
Nilsson science cover
Photograph
Dominique White takes a look at the last cryomodule for LCLS-II delivered from Fermi National Accelerator Laboratory.
Dominique White takes a look at the last cryomodule for LCLS-II delivered from Fermi National Accelerator Laboratory.
Photograph
Kayla Ninh at LCLS’s ChemRIX Hutch 2.2 in Near Experimental Hall. 
Kayla Ninh at LCLS’s ChemRIX Hutch 2.2 in Near Experimental Hall.
Photograph
SLAC’s linac before sunset looking west.
SLAC aerial of linac
Video
Aerial view of SLAC’s   campus with the LINAC in the foreground leading into the campus. The interstate 280 passes over the LINAC. Stanford...
Front Page - SLAC Full Campus
Video
Video
SLAC’s research yard in the foreground, with the LINAC stretching 2 miles to the west, and SLAC’s campus on the right.
Front Page - Drone timelapse LINAC
Video
Press Release
A new study has found that “diamond rain,” a long-hypothesized exotic type of precipitation on ice giant planets, could be more common than previously...
Diamond rain formation