Astronomers monitoring a tight pair of supermassive black holes have observed their orbital motion.
Winds that charge away from supermassive black holes at a fraction of the speed of light have long been mysterious and even contentious. Now, new evidence sheds light on their origins.
Astronomers have identified the smallest supermassive black hole ever detected in a galaxy’s center.
When a quasar, a black hole-fueled beacons that shines from across the cosmos, went dark, astronomers set out to find out why.