New measurements of the galaxy at the heart of the “Cosmic Horseshoe” indicate that it could house the most massive object ...

If you point your spaceship toward the constellation Leo, fire your thrusters, and travel about 5 billion light-years, you’ll ...

Astronomers have used a new method to weigh the ultramassive black hole. They hope this will help them better understand how ...

Astronomers have discovered what could be the largest black hole ever detected. With a mass of 36 billion times that of our ...

Astronomers had long been aware of these so-called Herbig-Haro objects—brilliant flares of ionized gas, often near newborn ...