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Gamma ray - Wikipedia
A gamma ray or gamma radiation (symbol γ or ), is a penetrating electromagnetic radiation arising from the radioactive decay of atomic nuclei.It consists of the shortest wavelength electromagnetic waves and so imparts the highest photon energy. Paul Villard, a French chemist and physicist, discovered gamma radiation in 1900 while studying radiation emitted by radium.
What Are Gamma-Rays? - Live Science
Gamma-rays can be used to treat cancer, and gamma-ray bursts are studied by astronomers. Electromagnetic (EM) radiation is transmitted in waves or particles at different wavelengths and frequencies.
gamma ray | Definition & Applications | Britannica.com
Gamma rays are produced in the disintegration of radioactive atomic nuclei and in the decay of certain subatomic particles.The commonly accepted definitions of the gamma-ray and X-ray regions of the electromagnetic spectrum include some wavelength overlap, with gamma-ray radiation having wavelengths that are generally shorter than a few tenths of an angstrom (10 −10 metre) and gamma-ray ...
Gamma Rays | Science Mission Directorate
GAMMA RAY SKY. Gamma rays also stream from stars, supernovas, pulsars, and black hole accretion disks to wash our sky with gamma-ray light. These gamma-ray streams were imaged using NASA's Fermi gamma-ray space telescope to map out the Milky Way galaxy by creating a full 360-degree view of the galaxy from our perspective here on Earth.
Official GammaRay Website
"Alive '95" (Anniversary Edition) will be released on September 29th, 2017 on earMUSIC. 25 years of Gamma Ray – 25 years of heavy metal from Hamburg: what started out in spring 1990 with the release of their debut album “Heading For Tomorrow” has achieved international fame a quarter of a century later.
First-ever constructed image of a terrestrial gamma-ray flash
Terrestrial gamma-ray flashes occur above some thunderstorms and propagate out into space. These high-energy discharges of photons were only discovered less than 25 years ago when a NASA ...
Gamma ray | Definition of Gamma ray at Dictionary.com
Gamma ray definition, a photon of penetrating electromagnetic radiation (gamma radiation) emitted from an atomic nucleus. See more.