A trio of photons emitted seven billion years ago from a gamma ray burst threaten to scrap decades of research by theoretical physicists.

Gamma rays can only be detected by sensors made of dense metals and takes over six feet (1.8 meters) of concrete to block. Gamma rays are high-energy photons produced by some of the most violent ...

Photons carry the electromagnetic ... Everyone is surrounded by photons: The light coming from the screen you're viewing is composed of photons, the X-rays doctor use to see bones are made of ...

4. Photons from particle accelerators are used in chemistry and biology. Visible light’s wavelengths are larger than atoms and molecules, so we literally can’t see the components of matter. However, ...

Exceptionally powerful X-ray jets have been detected emanating from two supermassive black holes. These cosmic structures date back to a time when the Universe was still young. These discoveries, ...

For the first time, researchers have seen how light behaves during a mysterious phenomenon called 'imaginary time'.

Gamma rays, which are packets of electromagnetic energy known as photons, represent the highest energy wavelength in the ...

The phosphors convert X-rays passing through the patient to visible light photons, which are immediately converted to photoelectrons by a photocathode made of cesium and antimony.

This light has more energy than the particles smashed in the large ... “We have discovered gamma-ray photons reaching 20 TeV from the Vela pulsar,” the corresponding author for this ...

Just like any other elementary particles, the particles of light – photons, can collide with each other. And if two photons carry enough. According to quantum mechanics, light can scatter light. ...

As long as one is sure all the photons, or particles of light, left their source at exactly the same time, ... "But nothing that we know can un-disperse gamma-ray photons," Nemiroff said.