Physicists have found a new “island of inversion” in the nucleus of molybdenum-84, a perfectly balanced atom with equal ...

The Structure of the Nucleus The electrons in an atom tend to occupy distinct shells. What about particles in the nucleus? The "magic numbers" of the isotope chart suggest that they also have a shell ...

The blast is what people imagine. A sudden flash, a rising cloud, the moment when history splits into “before” and “after”.