Even matter ejected by black holes can run into objects in the dark. Using NASA's Chandra X-ray Observatory, astronomers have ...

Using the deepest X-ray image ever made with Chandra of Centaurus A, astronomers have found an unusual mark from the giant black hole's powerful jet striking an unidentified object in its path.

To understand why stormy skies can display this purple hue, it's first important to understand how interactions between ...