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Gamma rays have the smallest wavelengths and the most energy of any wave in the electromagnetic spectrum. They are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes.

What emits gamma waves in space?

Quasars and active galaxies High energy electrons produced by the quasar, and subjected to inverse Compton scattering, synchrotron radiation, or bremsstrahlung, are the likely source of the gamma rays from those objects.

What causes a gamma-ray burst from space?

Scientists now know that the vast majority of gamma-ray bursts are "long bursts"longer than 2 seconds. They are thought to occur when a massive star runs out of fuel. Without a force to resist the crush of its own gravity, the core of the star collapses into a black hole.

What are gamma rays in space?

Gamma-rays are the highest-energy form of light in the universe. Some are generated by transient events, such as solar flares and the huge star explosions known as supernovas. Others are produced by steady sources like the supermassive black holes at the hearts of galaxies.

How gamma rays are produced?

Gamma rays originate from the settling process of an excited nucleus of a radionuclide after it undergoes radioactive decay whereas X-rays are produced when electrons strike a target or when electrons rearrange within an atom.

Does sun emit gamma rays?

Our Sun emits light at progressively shorter wavelengths, too: the ultraviolet, X-ray, and even gamma-ray parts of the spectrum. But most of the Sun's light is in the infrared, visible, and ultraviolet parts of the electromagnetic spectrum.

What can stop gamma particles?

Gamma Radiation Gamma waves can be stopped by a thick or dense enough layer material, with high atomic number materials such as lead or depleted uranium being the most effective form of shielding.

Can a gamma-ray burst hit Earth?

A gamma ray burst, the most powerful explosion known in the Universe, may have hit the Earth in the 8th Century. In 2012 researchers found evidence that our planet had been struck by a blast of radiation during the Middle Ages, but there was debate over what kind of cosmic event could have caused this.

Would a gamma-ray burst hit Earth?

Certainly, a gamma-ray burst could affect life's DNA, causing genetic damage long after the burst is over. If such a thing happened in Earth's history, it could well have altered the evolution of life on our planet. The good news is that Earth being blasted by a GRB is a pretty unlikely event.

Does the sun produce gamma rays?

Our Sun emits light at progressively shorter wavelengths, too: the ultraviolet, X-ray, and even gamma-ray parts of the spectrum. But most of the Sun's light is in the infrared, visible, and ultraviolet parts of the electromagnetic spectrum.