Upgrades to the hardware and software of the advanced observatory should allow astrophysicists to detect much fainter gravitational waves than before.

Artificial intelligence tools are making waves in almost every aspect of life, and astronomy is no different. An astronomer explains the history and future of AI in understanding the universe.

"Discoveries like this really open our eyes to the fact that we are still uncovering mysteries and exploring wonders in the universe..."

The event was spotted in infrared data — also a first — suggesting further searches in this band could turn up more such bursts.

We ask Avi Loeb, founding director of Harvard’s Black Hole Initiative, to help us picture the scariest void in the universe.

"The question of the nature of dark energy is perhaps the most important unanswered question in contemporary physics...."

Astronomers have found that mysterious dark energy may originate in black holes.

"Relatively few dual black holes like this have ever been confirmed. This pair has the closest separation yet measured..."

Researchers have created millions of simulated galaxies to find out how black holes grow with their galaxies.