The Chandra X-ray Observatory was launched on July 23, 1999 aboard Space Shuttle Columbia. See 25 'never-before-seen' images ...

Astronomers have been recording the signal for more than four decades, but this is the first time they've nabbed its origin.

Astronomers have uncovered a baffling cosmic anomaly — a supermassive black hole in galaxy NGC 5084 that appears to be ...

"We might have finally found the cause of a mystery that's lasted over 40 years," said researcher Sandino Estrada-Dorado.

After tracking a puzzling X-ray signal from a dying star for decades, astronomers may have finally explained its source: The ...

The X-ray signal from WD 2226-210 is similar to the X-ray emissions of two other white dwarfs that do not sit within cocoons ...

NASA Chandra X-ray Observatory 和 ESA XMM-Newton 卫星的数据显示，螺旋星云 WD 2226-210 中心的一颗白矮星发出的神秘 X 射线信号来自被其引力撕裂的行星。白矮星是最黯淡的恒星之一，属于恒星核残骸 ...

Space scientists say they have located a planet killer capable of ripping worlds to pieces. Researchers believe they've found ...

Co-author Martin Guerrero from the Institute of Astrophysics of Andalusia told Phys.org that debris from the shattered planet ...

NASA's most remarkable achievements include launching Explorer 1 in 1958, the 1969 Apollo 11 moon landing, and the Hubble ...

About 650 light-years from here, in the constellation Aquarius, lies the planetary nebula Caldwell 63, commonly known as the ...

XRISM has uncovered how galaxy clusters evolve—violent mergers create turbulence, preventing hot gas from cooling. This ...