Voyages into space are among the most iconic endeavors of the 20th and 21st centuries. Spacecraft that have ventured out to this “final frontier” have relayed stunning images and enlightening ...

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 ...

The government says it will dispose of its 140 tonnes of radioactive plutonium - currently stored at a secure facility at ...

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 ...