Chandra

Astronomers think they've found a new clue in their continuing quest to solve one of the most substantial mysteries of the cosmos: where about a third of the universe's matter is hiding.

Dark energy is even more mysterious than astronomers had thought, a new study suggests.

The crumbs left over from a supermassive black hole's recent meal have allowed scientists to calculate the monster's rotation rate, and the results are mind-boggling.

Is that the USS Enterprise blurring as it makes the jump to warp speed? Well, no. But a new photo of the galaxy cluster Abell 1033 certainly does call the famous "Star Trek" starship to mind.

NASA's Chandra X-ray Observatory has bounced back from the glitch that knocked it offline two weeks ago.

More than 2 million mph (1 million meters per second) — that's how incredibly fast some stuff in space is moving, according to new research using the Chandra X-Ray Observatory.

NASA's Chandra X-ray Observatory remains on course to bounce back from its gyroscope issues soon, mission team members said.

Cataclysmic mergers of the superdense stellar corpses known as neutron stars may be common across the cosmos, a new study suggests.

NASA has identified the glitch that sent its Chandra X-ray Observatory into a protective safe mode last Wednesday (Oct. 10). The scope should be up and running again next week, agency officials said.