Astronomers led by Stanford University and Harvard believe the "remarkable" cosmic explosion could either be the first X-ray ...

Since their discovery by Wilhelm Roentgen in 1895, X-rays have become a staple of modern medical care, from imaging teeth and ...

The two stars are taking turns feeding off one another. A flash of powerful X-ray light coming from a nova explosion on a white dwarf star has caught the attention of astronomers using the Chinese ...