Since the 1980s, a strange X-ray emission has puzzled astronomers. At the heart of the Helix Nebula, a dying star may have ...

Italian astronomers report the detection of a new X-ray binary (XRB), which has received the designation 4XMM J181330.1-17511 ...

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 ...

A not-so-distant white dwarf named WD 2226-210 has been on our radar since the 1980s for releasing X-rays, now we may know ...

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

Astronomers have detected mysterious X-ray signals coming from a nearby white dwarf star for more than 40 years. We may now ...

When scientists aimed the European Space Agency's X-ray observatory, XMM-Newton, at two mysterious lights on the outskirts of the Large Magellanic Cloud, they discovered an unexpected source ...

Astronomers using the European Space Agency’s XMM-Newton telescope have made an unexpected discovery—two supernova remnants ...

A new study used data from powerful X-ray missions, NASA’s Chandra X-ray Observatory and ESA’s (European Space Agency’s) ...

Wolf 359, a red dwarf star just 7.8 light-years away, could host planets, but extreme X-ray and ultraviolet radiation make ...

Using ESA's XMM-Newton satellite and NASA's Chandra X-ray observatory, astronomers have observed a young stellar object known as HL Tauri. Results of the observation campaign, presented Feb. 11 on ...