What exists at the core of a black hole? A research team led by Enrico Rinaldi, a physicist at the University of Michigan, ...

From unifying quantum physics and gravity to working out what is dark matter, the universe has some deep questions that ...

Scientists have discovered that some supermassive black holes rotate much more rapidly than expected. The discovery came as ...

Astronomers theorize that a low-mass white dwarf, a compact core of a dead star about as large as Earth, could be the culprit. A cosmic mystery surrounding a black hole some 270 million light ...

Supermassive black holes are seen as sources of wanton cosmic destruction, but there may be more to their powerful influence ...

They believe the most likely culprit is a spinning white dwarf — an extremely compact core of a dead star that is orbiting around the black hole and getting precariously closer to its event ...

Scientists are constantly unraveling the universe’s greatest riddles, but many fundamental puzzles remain unsolved. How did life first emerge on Earth? What ...

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.

An artist's concept of the supermassive black hole's mid-infrared flare. Image: CfA/Mel Weiss Astronomers have detected a mid-infrared flare from the supermassive black hole at the heart of the ...

WASHINGTON, Jan 14 (Reuters) - Scientists have detected emanating from the nucleus of a galaxy relatively close to our Milky Way flashes of X-rays gradually increasing in frequency that seem to be ...

Astronomers observed flashes of X-rays coming from a supermassive black hole at a steadily increasing clip. The source could be the core of a dead star that's teetering at the black hole's edge.