For science-fiction enthusiasts, that’s a bit depressing. Space is big, and while the speed of light is incredibly fast to us ...

What is the biggest object in the universe? Learn more about the biggest objects in the universe, including galaxies, galaxy clusters, and dark matter.

Astronomers have been mapping vast cosmic structures for decades, from galaxy clusters to immense superclusters. But now, researchers have identified what they say is officially the largest known ...

A giant supermassive black hole (SMBH) that consumes the mass of the Sun a day has been found to be about one-fifteenth of ...

The black hole, named RACS J0320-35, is about a billion times heavier than the Sun. It lies 12.8 billion light years from ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers have ...

The fastest-growing black hole in the universe is 34 billion times the mass of our sun and feasts on a meal the equivalent of our sun each day, according to a study. This massive, hungry black hole ...

CAPE CANAVERAL, Fla. — Telescopes around the world have spotted a monster radio jet streaming from a quasar dating back to the first 1 billion years of the universe. At double the width of our Milky ...

Gamma-ray bursts (GRBs) are the most energetic and luminous explosions in the universe. However, they are fleeting and often ...

Scientists spotted an enormous black hole in the early universe that's growing at 2.4 times the theoretical Eddington limit.