New models could inform researchers working to get the very first picture of Sagittarius A*, the supermassive black hole at the Milky Way's center.

Researchers have made some of the most accurate clocks imaginable in recent years, but the trick is harnessing those clocks to electronics. Using lasers to tune microwaves bridges the gap.

So little is known about black holes and the image hints at a path to a higher-resolution image and more and better data.

MIT Haystack Observatory researchers coauthor a paper announcing the observation of a surprising structure in a distant quasar, 3C 279.

Material falling into a black hole casts X-rays out into space – and now astronomers have used the echoes of this radiation to map the dynamic behaviour and surroundings of a black hole itself.

Michael Calzadilla and colleagues describe a violent black hole outburst that provides new insight into galaxy cluster evolution.

With increasingly advanced data, Michael McDonald and colleagues study a galaxy cluster bursting with new stars.

"The velocity of the discovered star is so high that it will inevitably leave the galaxy and never return."