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Nuclear weapons tests: The physics that makes them so hard to hide

Nuclear weapons tests are among the most violent events humans can trigger, and that violence leaves fingerprints in the ...

A Bizarre Seven-Hour Gamma-Ray Explosion From Deep Space Has Left Astronomers Puzzled

Researchers at the University of North Carolina at Chapel Hill have contributed to new insights into the most long-lived cosmic explosion ever recorded. The event was a gamma-ray burst that remained ...