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) ...

In a conventional system like our own, rocky planets such as Mercury, Venus, Earth, and Mars orbit closest to the host star. Farther out, gas giants ...

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 ...

Scientists at Columbia University working with Breakthrough Listen, a research initiative focused on searching for signs of civilizations beyond ...

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 ...

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

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*), ...

In my January 23, 2026, “The Universe” column, I wrote about some of the biggest bangs the universe has to offer: exploding stars, hiccupping magnetars, stellar disruptions and colliding black holes.

"We are not just replacing the black hole with a dark object; we are proposing that the supermassive central object and the ...

Researchers believe they have found the signal of a pulsar, the ancient core of a rapidly spinning star, at the center of the ...