Globular cluster M15 hides within it a planetary nebula, Pease 1. Observers with large scopes and steady skies can find it.

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.

Hubble captures three infant stars lighting up a blue nebula, with a secret protostar forming in a shadowed disc below.

Planetary nebula: The Helix Nebula This is composed of expanding gas that was blown off by a star as it collapsed to a white dwarf. (Image credit: NASA, ESA, J. Hester, A. Loll (ASU)) ...

As one expert says, "We always knew planetary nebulae were pretty. What we see now is spectacular." Space. The Ring Nebula comes into focus, and it's astounding. August 4, 2023 1:40 PM ET. By .

A new study lends support to the notion that JuMBOs (Jupiter-mass binary objects) discovered by the James Webb Space ...

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.

Nebulae are all but impossible to spot in the night sky, but you'd never know it. Through a telescope, they make the most jaw-dropping beauty shots. But what is a nebula in the first place?

It is a planetary nebula, a halo of gas jettisoned by a star that ran out of nuclear fuel. At its center lies a white dwarf — the leftover heart of that once-mighty star.