Standing on Earth and gazing out into the night sky, you’d think our Milky Way galaxy is relatively calm. Most nearby ...

The concept of two black holes orbiting one another has been theorized for many years, but recent satellite photography may ...

A new study may visually solve an enduring mystery about a bright object that's been studied since the 19th century ...

Not only are they supermassive black holes, but they crate a unique "wagging tail" of super-charged particles.

First-ever image of two black holes captured orbiting each other, confirming a decades-old theory using a powerful radio ...

For the first time, astronomers have managed to capture a radio image showing two black holes orbiting each other. The ...

Quasars are the bright centers of young galaxies powered by supermassive black holes. Most quasars are very distant and faint, making them difficult to observe. One quasar, 0957+561, is ...

Observations confirm astronomers' expectation that early-Universe quasars formed in regions of space densely populated with companion galaxies. DECam's exceptionally wide field of view and special ...

An international team of astronomers has used the Atacama Large Millimeter/submillimeter Array (ALMA) to observe a well-known ...