About PAC

Research at the Particle Astrophysics and Cosmology (PAC) Division at SLAC takes place on the Cosmic Frontier. Our scientists search for answers to fundamental questions about the building blocks of matter and the nature of space and time. They carry out experiments on the Earth's surface, underground and in space. They help design and build the instruments used in these quests, including underground detectors, precision silicon tracking systems for colliders, a space telescope and the world’s biggest digital camera. Theorists, experimenters and experts in computer simulation, mechanical engineering and other technical fields all join forces to push these studies ahead.

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