Hydrogen and helium formed shortly after the Big Bang. Stars create elements lighter than iron through nuclear fusion. Supernovae produce elements heavier than iron via the r-process. Neutron star ...

Bits of the stars are all around us, and in us, too. About half of the abundance of elements heavier than iron originates in some of the most violent explosions in the cosmos. As the universe churns ...

A researcher stands behind a metal pipe covered with electrical cords and gauges. A researcher works on a device at the Facility for Rare Isotope Beams. This part of the facility provides low-energy ...