A brilliant star in our nearest galactic neighbor didn’t go out with a bang, it simply faded from sight, leaving scientists to piece together what could make something so massive vanish so quietly.

Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile have discovered "signs of a ‘hot spot’ orbiting Sagittarius A*," according to the European Southern Observatory (ESO) ...

If confirmed, this disappearing act might provide the closest and best observational evidence for the birth of a black hole ...

Scientists scanning the heart of the Milky Way have spotted a tantalizing signal: a possible ultra-fast pulsar spinning every 8.19 milliseconds near Sagittarius A*, the supermassive black hole at our ...

Now, according to a new study published in The Astrophysical Journal, there could be a pulsar at the center of our Milky Way—and it could open a new chapter in physics. Researchers from Columbia ...

A massive star brightened in infrared light, then vanished without exploding. Astronomers uncovered the quiet birth of a black hole.

Their research was guided by a prediction from the 1970s: if a star collapses directly into a black hole, it should briefly glow in infrared light as it sheds its outer layers and becomes wrapped in ...

Astronomers propose that instead of a black hole, another dark object could be dominating the Milky Way's center.

In 2014, a NASA telescope observed that the infrared light emitted by a massive star in the Andromeda galaxy gradually grew brighter. The star glowed more intensely with infrared light for around ...

A massive filament of gas and dust, designated X7, has been elongated during its long approach to the Milky Way galaxy's supermassive black hole Sagittarius A*. See W.M. Keck Observatory imagery of X7 ...

What if the Milky Way’s central “black hole” isn’t a black hole at all? A new model proposes that an ultra-dense dark matter core could mimic its gravitational pull.

For decades, scientists have theorized that the Milky Way Galaxy’s supermassive black hole, known as Sagittarius A* (Sgr A*), ...