Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...

Astronomers have detected a mid-infrared flare from the supermassive black hole at the heart of the Milky Way galaxy for the ...

The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes ...

Scientists have detected emanating from the nucleus of a galaxy relatively close to our Milky Way flashes of X-rays gradually ...

In December 2022, less than six months after commencing science operations, NASA's James Webb Space Telescope revealed ...

The dense stellar remnant would, if confirmed, be the closest known object to any black hole, according to preliminary ...

One supermassive black hole has kept astronomers glued to their scopes for the last several years. First came a surprise ...

A mysterious black hole has started behaving even more strangely, scientists have said. The supermassive black hole has been ...

Black holes themselves emit no light, but the supermassive black holes at the centers of galaxies are often surrounded by ...

"If our eyes were able to detect X-rays, the sky would be full of dots. And every single one of those dots would be an ...

Galaxy clusters are home to many giant elliptical galaxies that have completed their growth and are not forming stars.

"This is how you solve the universe-breaking problem." ...