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1. www.esa.int › Why_do_we_observe_gamma_raysESA - Why do we observe gamma rays? - European Space Agency

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   Our Sun is a rather obvious source of visible light. But it also glows in radio waves, infrared, ultraviolet light and X-rays. Some objects emit only radio waves or only X-rays. This is why it is important to study the Universe with various kinds of space observatories.

   • Artist's Impression of a Gamma-Ray Burst

     The spacecraft has also confirmed the existence of a new...

   • The Electromagnetic SPECTRUM

     Gamma rays (wavelengths less than 0.01 nanometres) Gamma...

   • Merging Black Holes

     Artist's impression of two black holes as they spiral...

   • Supernova Explosion

     The Integral measurements suggest that a belt of gas from...

2. www.britannica.com › science › gamma-rayGamma ray | Definition, Uses, Wavelength, Production ...

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   Nov 3, 2024 · A gamma ray is electromagnetic radiation of the shortest wavelength and highest energy. Gamma-ray radiation has wavelengths generally smaller than a few tenths of an angstrom (10 meter), and gamma-ray photons have energies greater than tens of thousands of electron volts.

   • Gamma rays are produced during the disintegration of radioactive atomic nuclei and the decay of certain subatomic particles. Gamma rays are also pr...
   • The term gamma ray was coined by British physicist Ernest Rutherford in 1903, following early studies of the emissions of radioactive nuclei.
   • Medical applications of gamma rays include the imaging technique of positron emission tomography (PET) and radiation therapies to treat cancerous t...

3. Videos

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     NASA | What Are Gamma Rays?

     Apr 12, 2013

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     What are Gamma Rays and its effects

     Oct 22, 2022

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     RADIOACTIVITY - alpha, beta and gamma radiation explained!

     May 1, 2020

     6.5K Views

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4. science.nasa.gov › ems › 12_gammaraysGamma Rays - Science@NASA

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   Aug 10, 2016 · Gamma-ray bursts are the most energetic and luminous electromagnetic events since the Big Bang and can release more energy in 10 seconds than our Sun will emit in its entire 10-billion-year expected lifetime! Gamma-ray astronomy presents unique opportunities to explore these exotic objects.

5. www.space.com › gamma-rays-explainedGamma rays: Everything you need to know | Space

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   Dec 28, 2022 · On Earth, gamma rays are produced by radioactive decay, nuclear weapons and lightning, while in space they are produced by violent, high-energy sources such as solar flares, quasars, black...

6. letstalkscience.ca › gamma-rays-helper-or-hazardGamma Rays: Helper or Hazard? - Let's Talk Science

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   Nov 23, 2019 · Gamma rays might make you think of cancer, harmful radiation or superheroes. But gamma rays have lots of uses: food safety, manufacturing and even medicine!

7. en.wikipedia.org › wiki › Gamma_rayGamma ray - Wikipedia

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   A gamma ray, also known as gamma radiation (symbol γ), is a penetrating form of electromagnetic radiation arising from the radioactive decay of atomic nuclei. It consists of the shortest wavelength electromagnetic waves, typically shorter than those of X-rays.

8. People also ask

   Why are gamma rays important?

   • They are a significant topic of study in fields such as nuclear physics, astrophysics, and medical science due to their unique properties and diverse applications. Gamma rays are light (photons), not particles. They have the highest frequency and shortest wavelength on the electromagnetic spectrum.

   Gamma Rays or Gamma Radiation - Definition and Properties

   sciencenotes.org/gamma-rays-or-gamma-radiation-definition-and-properties/

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   What is a gamma ray?

   • A gamma ray is electromagnetic radiation of the shortest wavelength and highest energy. Gamma-ray radiation has wavelengths generally smaller than a few tenths of an angstrom (10 meter), and gamma-ray photons have energies greater than tens of thousands of electron volts. How are gamma rays produced?

   Gamma ray | Definition, Uses, Wavelength, Production, Examples, & Facts

   www.britannica.com/science/gamma-ray

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   Can gamma rays treat cancer?

   • These studies have focused on survivors of nuclear explosions, people given high doses of radiation to treat cancer, or people over-exposed to radiation during their jobs. However, gamma rays can also be used to treat cancer. Radiation therapy, or radiotherapy, uses high-energy gamma rays to kill cancer cells and shrink tumours.

   Gamma Rays: Helper or Hazard? - Let's Talk Science

   letstalkscience.ca/educational-resources/stem-explained/gamma-rays-helper-or-hazard

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   How do gamma rays affect living cells?

   • As a deeply penetrating ionizing radiation, gamma rays cause significant biochemical changes in living cells (see radiation injury). Radiation therapies make use of this property to selectively destroy cancerous cells in small localized tumours.

   Gamma ray | Definition, Uses, Wavelength, Production, Examples, & Facts

   www.britannica.com/science/gamma-ray

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   Are gamma rays ionizing radiation?

   • In astrophysics, gamma rays are conventionally defined as having photon energies above 100 keV and are the subject of gamma-ray astronomy, while radiation below 100 keV is classified as X-rays and is the subject of X-ray astronomy. Gamma rays are ionizing radiation and are thus hazardous to life.

   Gamma ray - Wikipedia

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   How do gamma rays work?

   • 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.

   Gamma Rays - NASA Science

   science.nasa.gov/ems/12_gammarays

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9. sciencenotes.org › gamma-rays-or-gamma-radiationGamma Rays or Gamma Radiation – Definition and Properties

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   May 14, 2024 · Gamma rays or gamma radiation are a form of electromagnetic radiation with extremely high frequency and energy. They are a significant topic of study in fields such as nuclear physics, astrophysics, and medical science due to their unique properties and diverse applications.