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

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

For over 40 years, astronomers have been puzzled by strange X-ray signals from the Helix Nebula’s white dwarf. Now, they may ...

M57, also known as the Ring Nebula, is a planetary nebula—the glowing remnant of a sun-like star. At its center lies a tiny white dot, the star’s hot core, known as a white dwarf.

NASA's Chandra X-Ray Observatory has helped track down the origin of a mysterious X-ray signal emanating from deep space. The signal, which scientists have been working to untangle for more than ...

After tracking a puzzling X-ray signal from a dying star for decades, astronomers may have finally explained its source: The old star might have destroyed a nearby planet. Dating back to 1980, X ...

A decades-old cosmic mystery may finally be solved. Scientists now suspect that the strange X-ray glow from a distant white ...

Ultraviolet: NASA/JPL; Optical: NASA/ESA/STScI (M ... have picked up an unusual reading from the center of the Helix Nebula. They detected highly energetic X-rays coming from the white dwarf ...

Astronomers have been recording the signal for more than four decades, but this is the first time they've nabbed its origin. Share on Facebook (opens in a new window) Share on X (opens in a new ...