Quasi-periodic oscillations (QPOs) are a rare phenomenon in active galactic nuclei. They have been observed to occur at ...

As the miniaturization of silicon-based semiconductor devices approaches fundamental physical limits, the electronics industry faces an urgent need for alternative materials that can deliver higher ...

A new optical device allows researchers to generate and switch between two stable, donut-shaped light patterns called ...

Researchers have uncovered how atoms subtly rearrange themselves for up to a trillionth of a second before releasing ...