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

TRAPPIST-1 is a red dwarf star about 40.7 light-years away from Earth. It is of particular interest because it has seven ...

Astronomers have revealed new evidence that not just one, but four tiny planets are circling around Barnard's Star, the ...

Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - ...

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

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

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 white dwarf, or dying star, caused the destruction of a Jupiter-sized planet that is only around 650 light years away from ...

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

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

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

Ceres is a dwarf planet in the asteroid belt between Mars and Jupiter. It's the largest object in the asteroid belt and the closest dwarf planet to Earth.