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Edwin hubble
The person who discovered the existence of galaxies outside of the milky way was Edwin Hubble. He also discovered that galaxies move away from each other with a constant acceleration, leading to the big bang theory.
Hubble discovered that the nebulas were galaxies based on the powerful telescope at Mt Wilson. The second discoveries was the red shift relationship v=HD shows that the galaxies were outside our own galaxies definitely and quantitatively, using light sources in galaxies that were standard sources that could calibrate the distance.
Hubble discovered that the nebulas were galaxies based on the powerful telescope at Mt Wilson. The second discoveries was the red shift relationship v=HD shows that the galaxies were outside our own galaxies definitely and quantitatively, using light sources in galaxies that were standard sources that could calibrate the distance.
In the Universe
Barred galaxies per se do not exist. They are just a sub category of spiral galaxies of which about 2/3rds are barred spiral galaxies.
Rings dont exist in galaxies.
Nebula exist in all galaxies.
no fairies don't exist any where..
Any "order" would be arbitrary. The main types are spiral galaxies, elliptical galaxies, and irregular galaxies. Several variations exist, too.
No, nebulae are not unique to the Milky Way, there are hundreds that have been identified outside it, and are generally assumed to be present in most if not all other galaxies.
no we couldn't because galaxies mean the milky way and if the milky way wasn't here we wouldn't