Planetary nebula

The term "planetary nebula" dates back to the 18th century when

astronomers thought these glowing blobs looked like distant gas giants. A

planetary nebula is actually made up of the shells of stellar material

ejected from dying stars that have passed through the red giant phase after starting to run out of fuel.

New Photo Reveals 'Ghostly' Green Nebula in Deep Space

This photo shows the glowing green planetary nebula IC 1295 surrounding a dim and dying star. It is located about 3300 light-years away from Earth.

Spellbinding Cosmic Beauty: Why Astronomy Images Matter

This image is of planetary nebula NGC 7662 as seen with the Chandra X-Ray Observatory. A planetary nebula is a phase of stellar evolution that the sun should experience several billion years from now, when it expands to become a red giant and t

Spellbinding Cosmic Beauty: Why Astronomy Images Matter

This image is NGC 6543 known as the Cat's Eye Nebula as it appears to the Chandra X-Ray Observatory and Hubble Telescope. A planetary nebula is a phase of stellar evolution that the sun should experience several billion years from now, when it

Celestial Wonder Looks Uncannily Like a Manatee

The W50 supernova remnant, shown in radio (green) against the infrared background of stars and dust (red), is being nicknamed the Manatee Nebula.

Planetary nebula

Planetary nebula

Planetary nebula

Planetary nebula

Planetary nebula

Planetary nebula

Planetary nebula

Planetary nebula

Planetary nebula

Planetary nebula

Planetary nebula