Gravitational waves stretch and squeeze the fabric of space and time itself. When space/time is squeezed, pulsar pulses ...

Could the Universe have been born inside a black hole? This question, raised by a team of scientists, challenges the Big Bang ...

A new paper from Harvard's sometimes controversial physicist Avi Loeb has suggested that if we want to find advanced alien ...

A team of scientists is proposing a bold alternative to the Big Bang theory, suggesting that our universe may have formed ...

Astronomers have witnessed a distant supermassive black hole devouring its surrounding matter so rapidly that it is "burping" ...

A new paper claims astronomers discovered an ultramassive black hole heavier than any other black hole we've ever measured.

Traditionally thought to go silent after a brief flare of activity, some black holes are now being observed emitting new ...

Caltech simulations reveal what happens when black holes collide with neutron stars—violent cracking, intense shock waves, ...

Black hole singularities defy the laws of physics. New research presents a bold solution to this puzzle: Black holes may actually be a theoretical type of star called a 'gravastar,' filled with ...

One of my favorite celestial objects in the universe is the black hole. Granted, I'm an astrophysicist. But I know I'm not alone. People love black holes. They seem to hold a near-mythic status in ...

"The supermassive black hole at the center of our galaxy, called Sagittarius A*, has a mass of approximately four million times that of the Sun, but it only looks like a tiny dot from Earth ...