no
The milky way is the spiral galaxy so spiral nebulae is its part.
the milky way is a spiral galaxy
No, we believe that nebulae probably exist in every galaxy, and possibly between galaxies as well.
Galaxy exists because stars and nebulae exists.
Ionization nebulae in the galaxy M51 are predominantly located in the spiral arms of the galaxy. These regions are where massive, young stars are found, which emit high-energy ultraviolet radiation that ionizes the surrounding gas, creating the colorful nebulae. The ionization nebulae are often observed in regions of active star formation within the galaxy.
Yes. There are many planetary nebulae in our galaxy.
within or on the edges of the spiral arms of the galaxy
No. Nebulae exist in almost every galaxy.
Nebulae are found in most galaxies
Andromeda Galaxy
Yes. Most, of a galaxy's mass is stars and nebulae, not black holes.
They all do. Well, technically, nebulae produce stars.