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

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.

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

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 ...

This color-composite image of the Helix Nebula was created from images obtained using the the Wide Field Imager, an astronomical camera attached to the 2.2 meter Max-Planck Society/ESO telescope ...

The Southern Ring Nebula, also designated NGC 3132, is a planetary nebula located about 2,000 light-years away in the ...

X-ray missions to better understand the Universe have been going on for decades now, and as soon as our species has begun looking at the stars this way, we've been flooded with mysteries.

From the iconic 'Pillars of Creation' to the vivid colours of the Lagoon Nebula, check out these 7 astonishing photos of ...

This Hubble mosaic is the highest resolution image ever made of the entire Crab Nebula, which is located 6,500 light-years away. These opaque, dark knots of gas and dust called "Bok globules" are ...