Astronomers have identified a star locked in a tight dance with a black hole that appears to be far quieter than theory says it should be, challenging long-held assumptions about how these extreme ...
Supermassive black holes rarely travel alone. Most large galaxies hide one at the center, and when galaxies collide, the two ...
A massive star in the nearby Andromeda galaxy has simply disappeared. Some astronomers believe that it's collapsed in on itself and formed a black hole.
A massive star 2.5 million light-years away simply vanished — and astronomers now know why. Instead of exploding in a supernova, it quietly collapsed into a black hole, shedding its outer layers in a ...
A star’s fatal brush with a supermassive black hole can light up a quiet galaxy. When gravity shreds the star, its gas spirals inward and briefly glows. Astronomers call these flares tidal disruption ...
A sudden X-ray flare from a supermassive black hole in galaxy NGC 3783 triggered ultra-fast winds racing outward at a fifth the speed of light—an event never witnessed before. Using XMM-Newton and ...
Scientists believe that when galaxies collide and merge, the supermassive black holes at their centers should eventually pair ...