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 ...

Space is already filled with plenty of mysteries, and black holes may be among the strangest. Here are some of the questions ...

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 ...

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

New research shows black holes can trigger gas cooling, creating fuel for their own feeding. This process keeps them growing ...

For the first time, researchers have found evidence that even microquasars with low-mass stars can efficiently accelerate ...

In a groundbreaking follow-up to their 2019 reveal of the first black hole image, the Event Horizon Telescope (EHT) team has ...

Black holes are profoundly dense ... The most plausible outcome is this brazen white dwarf (the spent core of a sun-like star), which is about one-tenth the mass of our sun.

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.

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 ...