The supermassive black holes in the cores of most massive galaxies wreak havoc on their immediate surroundings. During their most…
Wondering about the latest news on the intriguing object called 'G2' that is making its closest approach to the supermassive…
In a galaxy four billion light-years away, three supermassive black holes are locked in a whirling embrace. It’s the tightest…
Have an 8-inch or larger telescope? Don't mind staying up late? Excellent. Here's a chance to stare deeper into the…
Sometimes it takes a second look -- or even more -- at an astronomical object to understand what's going on.…
It's oft-repeated that black holes are powerful gravity wells, because they represent a dense concentration of matter in one location.…
In any galaxy there are hundreds of X-ray binaries: systems consisting of a black hole capturing and heating material from…
Observatories around the world and in space have been honed-in on the center of our galaxy, looking for possible fireworks…
Contradicting past theories, cold gas has been found in abundance in some elliptical galaxies -- showing that there must be…
Gas around supermassive black holes tends to clump into immense clouds, periodically blocking the view of these huge X-ray sources…