Astronomers have confirmed the first known triple system in which all three galaxies host actively feeding, radio-bright ...

Three galaxies were found in the merger of a triple system, which was rare in itself, and might help observe hierarchical ...

Three merging galaxies host three active black holes, offering rare insight into galaxy and black hole growth.

Euclid launched in 2023 on a six-year mission to map the cosmos at scale, observing billions of galaxies stretching as far ...

It is uncommon to discover not one, not two but three enormous black holes being fed in the same neighborhood of the universe ...

Astronomers have used the Keck Observatory's DEIMOS multi-object spectrograph to observe a nearby galaxy cluster designated ...

Galaxy merger Arp-Madore 417-391 is on display in this new image captured by the Hubble Space Telescope's Advanced Camera for Surveys (ACS). The merger is about 670 million light-years away from Earth ...

"This new approach can even reveal faint AGN that other identification methods will miss." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

A languid spiral galaxy appears draped against deep space in a stunning new image from the European Space Agency’s Euclid ...

Picture the Milky Way galaxy-a disk of stars and gas, a stellar spheroid and an enormous halo of dark matter. It spirals around a black hole that is supermassive-about three million solar masses. The ...

An international team led by a researcher from Hiroshima University has succeeded in revealing the detailed structure of a massive ionized gas outflow streaming from the starburst galaxy NGC 6240. The ...