Astronomers have made a groundbreaking discovery about black holes by accident. In a study led byMatus Rybak, researchers employed a rare “double zoom” technique that allowed them to directly measure ...

Black holes may be invisible, but their surroundings aren't — and for the first time, astronomers have directly measured a superheated "corona" encircling one of these cosmic giants. The supermassive ...

The Corona del Mar post office celebrated a once-in-a-century occurrence when the date matched its ZIP code on Friday.

For the first time, astronomers have directly measured a solar-system-size corona around a distant supermassive black hole, thanks to a rare cosmic alignment.