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 ...

The electromagnetic spectrum is a rainbow of light waves that surround us — but we only see a small part of it. From radio waves to gamma rays, each type of light has its own properties and uses. By ...

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 electromagnetic wave absorption and shielding material is less than 0.5mm thick and is distinguished by its low reflectance of less than 1% and high absorbance of over 99% across three ...