Light, heat, radio transmissions, and medical X-rays may not seem all that similar ... and are delivered by massless particles called photons. The only thing that differentiates one type of ...

Now, this same black hole is once again captivating scientists with an extraordinary gamma-ray flare that’s emitted photons hundreds of billions of times more powerful than visible light.

Scientists discover low-mass microquasars can accelerate cosmic rays, reshaping theories on high-energy particle origins.

Gamma rays are highly energetic photons, and very high-energy gamma rays carry with them energies of trillions of electron volts, a level that is hundreds of billions of times greater than visible ...

Radiation within the visible spectrum can appear black if it is low in power – more specifically, lower in power than its surroundings. Additionally, radiation outside the visible range of wavelengths ...

Most of our gadgets rely on chips. Electronic chips. But that’s about to change. The chips of the future are chips of light. They use light particles known as photons to move data. Europe wants to ...

A massive burst of gamma rays produced by the explosion of a star almost two billion light-years away was so powerful that it changed Earth’s atmosphere, according to scientists. Gamma rays are ...

It includes radio waves, microwaves, infrared, (visible) light, ultraviolet ... heating effects from the combined energy transfer of many photons. In contrast, high frequency ultraviolet, X-rays and ...