Active galactic nuclei are supermassive black holes at the center of certain galaxies. As matter falls into these black holes ...

Astronomers have captured the most detailed infrared images yet of an active galactic nucleus (AGN), using the Large ...

Kentucky cave explorer Floyd Collins went underground—and didn’t come out. The epic effort to rescue him gripped national ...

Its new lawsuit charges that allowing the state to give $125 million a year in tax credits is an unconstitutional gift to ...