Issues

Using heat and light to subtly vary the local radius and refractive index of a glass fiber is a simple and surprisingly reproducible way to create and tune a microresonator.

There’s not yet enough data for a convincing sighting of standard particle theory’s long-sought capstone. But there’s less and less room for it to hide.

A single energetic photon can excite more than one electron in a nanocrystal. Collecting those electrons may be a path to higher photovoltaic efficiencies.

Groups that provide moral support, legal counsel, and swift rebuttals of misinformation are sprouting up.

Six-year extension of grants act will give small companies a leg up in the scramble for increasingly scarce federal research dollars.

More people are surviving with worse injuries than ever before.

Twenty years after puzzling atmospheric ionization led to the discovery of cosmic rays, their investigation opened up particle physics. Now they’re providing a window on extragalactic astrophysics.

Curiously unsung in the West, Lomonosov broke ground in physics, chemistry, and astronomy; won acclaim as a poet and historian; and was a key figure of the Russian Enlightenment.

A newly completed survey of 15 000 physicists worldwide reveals that women physicists still do not have equal access to the career-advancing resources and opportunities enjoyed by their male colleagues.

It’s no secret that some people are wary of irradiated food. But radiation levels that effectively control pathogens have no demonstrated harmful effects on humans.