The explosions, which leave behind a black hole or a neutron star ... hydrogen-depleted supergiant star in the Andromeda galaxy (M31) failed to detonate as a supernova. The research, posted ...

The influence of the supermassive black hole allows the binary star systems ... as well as others out there -- like the Andromeda galaxy, the closest to the Milky Way about 2.5 million light ...

Now that may sound big, but Sagittarius A* is small compared to other supermassive black holes. Take the one at the center of our neighbor the Andromeda galaxy, which has a diameter of 516 million ...

At the heart of the Andromeda Galaxy lies a supermassive black hole with a mass of approximately 1.5 billion times that of our sun! This black hole plays a crucial role in shaping the galaxy’s ...