The Event Horizon Telescope captured the first image of the Milky Way galaxy's supermassive black hole Sagittarius A* — our ...

New AI-enhanced images of Sgr A*, showing that our galaxy's black hole spins rapidly and tilts slightly toward Earth.

Astronomers have observed a supermassive black hole far from the center of a galaxy where it ought to be giving off bright ...

Einstein was a great thinker who made plenty of mistakes—errors that sometimes led to more meaningful discoveries in physics, ...

It’s possible that these objects might be the primordial beginnings of the supermassive black holes found in the centers of ...

The giant elliptical galaxy Messier 87 (M87), in the constellation Virgo, possesses near its center a supermassive black hole ...

Astronomers used the ALMA radio array in Chile to show that two narrow spiral arms are funneling gas toward the central ...

From energy and manufacturing to health care and communications, breakthroughs in these sectors are frequently rooted in ...

Comets SWAN and Lemmon, both discovered this year, have arrived near Earth from the outer region of the solar system.

Skywatchers can catch a rare glimpse of Comet Lemmon this month, and it won't be back until around the year 3175. Here's how ...

A pairing-off of the brightest planet and a slender crescent moon will be the chief celestial attraction in the dawn sky ...

Beginning Monday afternoon, comet Lemmon will pass about 56 million miles from Earth, while comet Swan will soar even closer, ...