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The Advanced Light Source is a U.S. Department of Energy scientific user facility at Lawrence Berkeley National Laboratory. Our mission is to advance science for the benefit of society by providing our world-class synchrotron light source capabilities and expertise to a broad scientific community.

Scientists Unveil Radiation-Driven Chemistry on Icy Moons

Using tunable vacuum ultraviolet light, researchers found that ionizing CO2–water clusters forms new oxygen–oxygen bonds. These findings provide a molecular pathway to understanding how radiation produces peroxide on the icy surfaces of moons, which may shed light on how complex molecules originate.
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Hidden State Precedes Superconductivity in Kagome Metal

Experiments at the ALS revealed a hidden electronic phase that breaks time-reversal symmetry before a charge-density wave forms in a kagome metal. Because hidden electronic order can compete with or shape superconductivity, this finding helps guide the search for high-temperature, unconventional superconducting materials. Read more »

ALS Fellowship Application Window Opens in September

Applications for fellowships to start in winter or spring 2027 will be accepted from September 8–October 2. Fellows will spend up to a year in residence at the ALS pursuing research projects in teams that include staff and the user community, and will be exposed to current scientific challenges that advanced synchrotron radiation tools can tackle. Read more »