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- GAMMA-RAY BURST
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- A short-lived energy burst, which produces gamma rays. The origin of these bursts is not known for certain, but they
- may be caused by collisions between neutron stars and black holes.
- During the past twenty years, several thousand bursts have been observed from all directions of the universe. The one
- thing the gamma bursts have in common is that they come from very long distances away. That is, there have been
- many such bursts in the younger universe.
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