Edwin Powell Hubble
Hubble, in his studies of Nebulas which turned out to be galaxies.
Edwin Hubble
No one knows the answer to that because astronomers haven't been able to explore any other galaxies besides the Milky Way.
Yes.
Yes. There are about 200 billion galaxies in the known universe.
Yes. Some examples of galaxies (which you can look up) are the: Andromeda Galaxy, the Large Magellanic cloud and the Small Magellanic Cloud.
The astronomer Edwin Hubble provided evidence in the 1920s that other galaxies existed beyond our own Milky Way. By observing Cepheid variable stars in the Andromeda Galaxy, he demonstrated that it was a separate galaxy located far outside our own. This discovery revolutionized our understanding of the universe's scale and confirmed the existence of other galaxies.
The Milky Way is our galaxy, the are no other galaxies within it though we are part of a local group of galaxies.
Spiral galaxies
no we couldn't because galaxies mean the milky way and if the milky way wasn't here we wouldn't
There are billions of galaxies in the Universe.
The local group of galaxies that include our Milky Way is called the "Local Group".The local group of galaxies that include our Milky Way is called the "Local Group".The local group of galaxies that include our Milky Way is called the "Local Group".The local group of galaxies that include our Milky Way is called the "Local Group".