What: New analyses using early observations from the European Space Agency’s Euclid mission examine how galaxy mergers trigger active galactic nuclei (AGN), luminou ...

Quasi-periodic oscillations (QPOs) are a rare phenomenon in active galactic nuclei. They have been observed to occur at ...

Blazars represent one of the most intriguing classes of active galactic nuclei, where relativistic jets are oriented close to our line of sight. This favourable geometry magnifies the observed ...

Some black holes, bound by gravity, rotate around each other, as shown in this simulated image. Simulating eXtreme Spacetimes Lensing (SXS), CC BY-SA Black holes are regions of space where gravity is ...

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

In the article published today in the Astronomy & Astrophysics journal, new evidence suggests how supermassive black holes, with masses of several billion times that of our Sun, formed so rapidly in ...

Morphological structure of the galactic outflow in VV 340a. This artistic rendering illustrates a multi-phase galactic outflow driven by a central active galactic nucleus. The white helix represents a ...

Using the Chandra X-ray Observatory and the Hubble Space Telescope, NASA has captured new insight into a black hole duo found at the center of two colliding galaxies. The two supermassive black holes ...

On January 26, 1978, the International Ultraviolet Explorer launched into orbit on a mission to study ultraviolet light emitted by stars and other bright objects in the universe. Because a lot of that ...