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Aug 10, 2016 · Gamma-ray wavelengths are so short that they can pass through the space within the atoms of a detector. Gamma-ray detectors typically contain densely packed crystal blocks. As gamma rays pass through, they collide with electrons in the crystal.
- Visible Light - NASA Science
X-Rays. Gamma Rays. Earth's Radiation Budget. Resources. EMS...
- Gamma-ray Bursts: Harvesting Knowledge From the Universe’s ...
In August 2020, NASA’s Fermi Gamma-ray Space Telescope...
- Visible Light - NASA Science
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...
Jun 1, 2023 · Fifty years ago, on June 1, 1973, astronomers around the world were introduced to a powerful and perplexing new phenomenon called GRBs (gamma-ray bursts). Today sensors on orbiting satellites like NASA’s Swift and Fermi missions detect a GRB somewhere in the sky about once a day on average.
- Francis Reddy
- 4 min
Apr 13, 2017 · Occasionally, giant explosions, called solar flares, occur on the surface of the Sun and release massive amounts of energy out into space in the form of x-rays, gamma rays, and streams of protons and electrons. This is called a solar particle event (SPE).
Nov 21, 2023 · In August 2020, NASA’s Fermi Gamma-ray Space Telescope tracked down a second-long burst named GRB 200826A, over 6 billion light-years away. It should have fallen within the short-burst class, triggered by mergers of compact objects.
Gamma rays provide information about some of the most energetic phenomena in the universe; however, they are largely absorbed by the Earth's atmosphere. Instruments aboard high-altitude balloons and satellites missions, such as the Fermi Gamma-ray Space Telescope, provide our only view of the universe in gamma rays.
Nov 18, 2014 · Radioactive gamma-ray sources in space are associated with events of nucleosynthesis, such as supernovae. A magnetic field exerts a force on a charged particle that is moving in it. This causes the particle to radiate, with the emitted power being proportional to the square of the force divided by the square of the mass of the particle.
