At cosmological scales, Albert Einstein’s theory of general relativity has given scientists an immensely accurate blueprint ...

One of the most perplexing discoveries in modern astronomy has been finding supermassive black holes, some weighing billions ...

Astronomers have witnessed a distant supermassive black hole devouring its surrounding matter so rapidly that it is "burping" out excess mass at nearly a third of the speed of light.

The scientists who precisely measure the position of Earth are in a bit of trouble. Their measurements are essential for the ...

Black holes, once purely theoretical, are now observable phenomena, offering insights into the universe. Their intense ...

These are rare occurrences—scientists estimate that the giant black hole at the center of our Milky Way galaxy gobbles a star ...

Scientists may have found a new way to detect some of the universe's most mysterious objects, primordial black holes (PBHs), using Hawking radiation. This groundbreaking approach relies upon watching ...

Cosmic radiation occasionally contains enormous amounts of energy, but we don’t know why or where this radiation comes from.

Astronomers have discovered extraordinarily powerful X-ray jets blasting from two supermassive black holes that are so ancient that the jets shine in the afterglow of the Big Bang.

Traditionally thought to go silent after a brief flare of activity, some black holes are now being observed emitting new bursts of energy years after devouring a star—"the equivalent of a cosmic burp, ...

"We would need to consider the possibility that the source was created (or trapped as a primordial black hole) by a highly ...

These explosions, called extreme nuclear transients, shine for longer than typical supernovas and get 30 to 1,000 times as bright.