In the June 2013 issue of Astronomy, we ran a story titled “Explore the ultimate planetary nebula catalog.” It described a catalog of 1,510 planetary nebulae compiled by two Czech astronomers ...

One of just a few planetary nebulae in Charles Messier’s catalog, the Ring Nebula (M57) looks just as its name indicates: a ring-shaped cloud in space, glowing green. Mark Hanson ...

The Cat's Eye Nebula, a planetary nebula formally known as NGC 6543. According to NASA, "Observations suggest the star ejected its mass in a series of pulses at 1,500-year intervals.

Planetary Nebula: An ionised shell of gas expelled by a dying star in the late stages of stellar evolution. Central Star: The remnant core of a star that emits high-energy radiation, ...

The nebula was named after its resemblance to a dumbbell as seen in visible light. It was discovered in 1764 by Charles Messier, who included it as the 27th member of his famous catalog of ...

Thanks to the James Webb telescope, we can now see the nebula with more clarity. As one expert says, "We always knew planetary nebulae were pretty. What we see now is spectacular." ...

This NASA/ESA Hubble Space Telescope image features the planetary nebula Kohoutek 4-55. ESA/Hubble & NASA, K. Noll When a star comes to the end of its life and dies, it can be an epic and ...

A planetary nebula is an astronomical object consisting of a glowing shell of gas and plasma formed by certain types of stars at the end of their lives. They are in fact unrelated to planets; the ...

Gazing into a planetary nebula 2,500 light-years away in space may remind people the sun will eventually die, too. WIll it also go out with a light show?