Plutonium discovered at the bottom of the ocean was found to be refuse from a kilonova that exploded close to Earth 10 million years ago. Kilonovas occur when binary neutron stars spiral closer and ...

Radioactive materials offer an alternative power source ... RTGs excel at space applications, because these nuclear batteries are highly stable, lightweight and free of moving parts. In 1959, a ...

Stable isotopes do not decay into other elements. In contrast, radioactive isotopes (e.g., 14C) are unstable and will decay into other elements. The less abundant stable isotope(s) of an element have ...

Stable isotopes are non-radioactive forms of atoms. Although they do not emit radiation, their unique properties enable them to be used in a broad variety of applications, including water and soil ...