An international team of researchers, led by scientists from GSI/FAIR in Darmstadt, Germany, has studied r-process ...

Physicists have solved a long-standing puzzle about mercury’s nuclear fission by using a five-dimensional model that ...

Some elements have more than one stable (nonradioactive) isotope—variants of the same substance, but with different numbers of neutrons in their atomic nuclei that alter the mass. (The element's ...