The SMITHSONIAN ASTROPHYSICAL OBSERVATORY is a part of the Smithsonian Institution which, in conjunction with the Harvard ...

Jonathan McDowell is retiring from studying the universe. But he’s ramping up efforts to chronicle humanity’s exploration of ...

The Smithsonian Astrophysical Observatory is pleased to present a collection of 9 models that were created using images generated by the Chandra X-ray Observatory. The launch of this collection ...

People often think about archaeology happening deep in jungles or inside ancient pyramids. However, a team of astronomers has ...

A Michigan State University researcher saw X-rays coming from a black hole using the NASA Chandra X-Ray Observatory telescope ...

Scientists have been receiving X-ray signals from the Helix Nebula for decades, but now they believe it may hide a horrifying ...

For more than eight hours last fall, the Chandra X-Ray Observatory stared at a nondescript galaxy 240 million light-years away. In that time, one of the detectors intercepted exactly four X-ray ...

This colorful image of the Helix nebula may mirror what someday could become of our sun and our home planet. Released on ...

Decades of constant X-ray emission from the Helix Nebula’s white dwarf suggest debris from a Jupiter-sized planet steadily rains upon the star.

Data from NASA’s Chandra X-ray Observatory and ESA’s XMM-Newton indicate that remnants of the destroyed plane... A brief yet intense X-ray flash, XRT 200515, was detected in NASA's Chandra ...