All forms of electromagnetic radiation, whether they're called waves or rays, are generated by particles in motion. In a radio signal, for example, negatively charged electrons quickly move back ...

Gravitational waves, like electromagnetic radiation, come in a range of frequencies with high-frequency gravitational waves, like high-frequency light, having shorter wavelengths and being more ...

A 50-year-old idea about electromagnetic waves known as the Zel’dovich effect has been tested by physicists in the lab, and proven to be correct. The idea behind the Zel’dovich effect came ...

These slow waves can take years or even decades to pass by, so it’s only by gathering data over that long a period that the researchers were able to detect a consistent background signal of low ...

NANOGrav hears “hum” of gravitational wave background, louder than expected Exotic stars called millisecond pulsars serve as celestial metronomes. Jennifer Ouellette – Jun 28, 2023 8:00 pm | 46 ...

Today, a humongous team of astronomers called the NANOGrav Collaboration announced something remarkable: the first evidence for a background hum of gravitational waves that permeates our universe ...

This new work provides a way to distinguish early universe waves from those from other sources. Standard model physics—the successful theories of the strong, weak and electromagnetic ...

Researchers at ETH Zurich have managed to make sound waves travel only in one direction. In the future, this method could ...