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1. en.wikipedia.org › wiki › Gamma-ray_burstGamma-ray burst - Wikipedia

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   In gamma-ray astronomy, gamma-ray bursts (GRBs) are immensely energetic explosions that have been observed in distant galaxies, being the brightest and most extreme explosive events in the entire universe, [1] [2] [3] as NASA describes the bursts as the "most powerful class of explosions in the universe". [4]

2. www.nasa.gov › universe › nasa-missions-probe-game-changing-cosmic-explosionNASA Missions Probe Game-Changing Cosmic Explosion

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   7 gru 2022 · Short bursts emit gamma rays for less than two seconds and are caused by mergers of dense objects like neutron stars. Scientists sometimes observe short bursts with a following flare of visible and infrared light called a kilonova.

3. science.nasa.gov › directorates › smdHow NASA Chases and Investigates Bright Cosmic Blips

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   24 sty 2024 · This newer signal, GRB 230307A, which happened in March 2023, joined the BOAT in the category of “long” gamma-ray bursts, lasting 200 seconds, compared to 600 for the BOAT. Thanks to infrared data from NASA’s James Webb Space Telescope, scientists determined that GRB 230307A may have had a very different origin: the merger of two neutron ...

4. nasaviz.gsfc.nasa.gov › 14317NASA Missions Probe What May Be a 1-In-10,000-Year Gamma-ray...

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   28 mar 2023 · Exploring the polarization of gamma-ray bursts allows astronomers to probe the geometry of magnetic fields within the jets of gamma-ray bursts, providing information about what mechanism close to their black holes generated them.

5. science.nasa.gov › universe › gamma-ray-bursts-harvesting-knowledge-from-theGamma-ray Bursts: Harvesting Knowledge From the Universe’s Most...

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   21 lis 2023 · After traveling 130 million light-years, the gravitational waves reached Earth narrowly before the gamma rays, proving gravitational waves travel at the speed of light. Scientists had never detected light and gravitational waves’ joint journey all the way to Earth.

6. science.nasa.gov › science-behind-the-discoveries › hubble-gamma-ray-burstsGamma-Ray Bursts - Science@NASA

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   Gamma-ray bursts (GRBs) are the biggest explosions in the cosmos emitting large amounts of the most energetic form of light, gamma rays. GRBs shine hundreds of times brighter than a typical supernova (the explosive death of a massive star) and are about a million trillion times brighter than the Sun; yet they are short-lived, lasting from a few ...

7. scitechdaily.com › gamma-ray-bursts-unraveling-the-mysteries-of-the-universeGamma-Ray Bursts: Unraveling the Mysteries of the Universe With...

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   28 lut 2024 · The most powerful events in the known universe – gamma-ray bursts (GRBs) – are short-lived outbursts of the highest-energy light. They can erupt with a quintillion (a 10 followed by 18 zeros) times the luminosity of our Sun.