Astronomers using the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) instruments, the U.S.

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 ...

Explosions at the U.S. Steel facility in Clairton on Monday killed two people and injured 10 others, officials said. The big picture: Pennsylvania search and rescue crews were sent to Clairton after ...