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U.S. Department of Energy Office of Science

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Searching for the Origins of Presolar Grains

The types of ancient stellar explosions that gave rise to meteoric presolar grains can now be identified thanks to observations of gamma rays emitted by the argon-34 isotope

How Large Are Neutron Stars?

Data from the first observation of a neutron-star collision combined with input from modern nuclear theory narrow the range of neutron star radii.

When Tiny, Energetic Worlds Collide

A new analysis provides a clearer picture of the universe by considering the yield of fast particles in grazing versus head-on nuclear collisions.

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