Black holes are mysterious objects, and one theory posits that our universe exists inside of one. It sounds strange, but ...

"It is fascinating that an active galactic nucleus can change its brightness so dramatically over such a short period of time ...

According to models, as supermassive black holes orbit each other, they transfer their orbital energy to the stars and gas ...

An underwater observatory recently detected a startlingly energetic cosmic neutrino. One possible cause involves a phenomenon ...

Very Large Telescope observations of the galaxy revealed that there was likely a “sudden awakening of the massive black hole ...

General relativity stands as one of the bedrock theories in modern physics. Its strange view of relative time and space has been confirmed by countless experimental and observational tests, from ...

Some things in cosmology may simply be unknowable. Why is there something rather than nothing? What lies outside the universe? What is inside a black hole? That last one has been niggling at ...

"This challenges our understanding of black hole and galaxy formation in the early universe." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

In this handout photo provided by the National Science Foundation, the Event Horizon Telescope captures a black hole at the center of galaxy M87 in an image released on April 10, 2019. (Photo by ...

In a fresh discovery that's leaving astronomers awestruck, the James Webb Space Telescope (JWST) has confirmed the existence of a "runaway" supermassive black hole roughly 20 million times the mass of ...