In fifteen years of operation, the Chandra X-ray Observatory has given us a view of the universe that is largely hidden from telescopes sensitive only to visible light. Chandra has captured galaxy ...

It’s always amazing, and more than a little humbling, when the universe reminds us that our “common sense” is provincial and will fall apart on cosmic scales. If you’re on the surface of Earth—and I’m ...

In its first decade of exploration, Chandra has expanded our view of the universe with its unrivaled ability to create high-resolution X-ray images of cosmic phenomena.

“You can journey to the ends of the earth in search of success,” 19th-century Baptist preacher Russell Conwell is said to have proclaimed, “but if you’re lucky, you will discover happiness in your own ...