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ShareGamma-ray bursts are the most luminous physical phenomena in the universe known to the field of astronomy.
They consist of flashes of gamma rays that last from seconds to hours, the longer ones being followed by several days of X-ray afterglow.
These flashes occur at apparently random positions in the sky about once per day.
For more information about the topic Gamma ray burst, read the full article at Wikipedia.org, or see the following related articles:
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Note: This page refers to an article that is licensed under the GNU Free Documentation License. It uses material from the article Gamma ray burst at Wikipedia.org. See the Wikipedia copyright page for more details.
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