The recombination of electron shells in molecules, taking just a few dozen attoseconds (a billionth of a billionth of a second) can now be viewed 'live,' thanks to a new method. The recombination of ...

In classical physics, a vacuum is a total void—a true manifestation of nothingness. But quantum physics says that empty space isn’t really empty. Instead, it’s buzzing with “virtual” particles ...

The chemical bond has just crossed a century. The ‘bond’ has been central to science, second only to atoms perhaps, both of which together make the physical world. In the past hundred years, the bond ...