Top: An example of a protoplanetary nebula. - the Egg nebula Bottom left: An example of a planetary nebula - the Helix nebula. Bottom right: An example of a supernova remnant - SN 1006.

When stars like that die, they expel shells of gas into unique shapes. The Helix Nebula is a great example of a planetary nebula. It kind of looks like a bubble or an eye from Earth's point of view.

and the Chandra X-ray Observatory are valuable tools in the investigation of planetary nebulae. Their abilities go far beyond ...

Scientists have discovered a few thousand planetary nebulas in the Milky Way. Those include the Ring Nebula, aka NGC 6720 and Messier 57. With Webb, the researchers could see a compact dust cloud ...

The Ring Nebula (M57) was first discovered in the winter of 1779. But by whom? Some claim it was French astronomer Antoine Darquier de Pellepoix, while others insist it was Charles Messier.

For example, the Andromeda nebula become the ... The leftovers of a star that went supernova are called planetary nebula. Why? Their blue-green look is reminiscent of Uranus and Neptune.

A classic example of a dark nebula is the Horsehead nebula, also in Orion, near Alnitak, the left-most of the three belt stars. The name planetary nebulae comes from their appearance as small ...

If you buy through a BGR link, we may earn an affiliate commission, helping support our expert product labs. The Hubble Space Telescope captured new images of familiar planetary nebulae using a ...

Astronomers have discovered a rare celestial jewel -- a so-called Planetary Nebula (PN ... of "IPHASX J055226.2+323724," is only the third example of an association between a PN and an OC out ...

The nebula, dubbed Pa 30, appears in the same sky direction now as a bright "guest star" did in the year 1181. Although Pa 30's filaments look similar to that created by a nova (for example GK Per), ...