Surprisingly, some of the universe's brightest objects are black holes. As scorching gas and dust flow around and into a black hole, they glow with fierce intensity across the light spectrum. Now, a ...

Researchers may have identified what could be a compelling clue in the ongoing hunt to prove the existence of dark matter. A mysterious diffuse glow of gamma rays near the center of the Milky Way has ...

A new model is bringing scientists a step closer to understanding the kinds of light signals produced when two supermassive black holes, which are millions to billions of times the mass of the Sun, ...

On the left, in blue, is an X-ray image of an accreting supermassive black hole (shown inset as artwork) composited on an optical image of galaxies in the deep universe. On the right is an ...

Shutterstock Dark matter is a difficult subject because, on the one hand, we don’t really know if it even exists at all. On the other hand, many models of the universe rely on it to work. So, when a ...

It looks like fireflies flickering in the darkness. Slowly, more and more amass, lighting up the screen in large chunks and clusters. But this is not a video about insects. It’s a simulation of the ...

Supermassive black holes at the centers of large galaxies grew mostly through the accretion of gas, with the occasional boost from mergers with other black holes. When you purchase through links on ...