Researchers have spent the past few years watching a black hole re-awaken roughly 300 million light-years away from Earth.

The swirling, paint-like clouds in the darkness of space in this stunning image seem surreal, like a portal to another world ...

Although we know that supermassive black holes (millions of times the mass of our sun) lurk at the center of most galaxies, ...

China's foreign ministry slammed U.S. trade tactics, warning it won't bow to pressure, calling the U.S. a "bully" in a ...