Galaxy exists because stars and nebulae exists.
our solar system exists in barred spiral galaxy
No galaxy by that name exists.
The earth exists on the edge of the Milky Way galaxy.
If it exists it is not known by most observers.
Our sun "The Sun" exists in a galaxy called "the milky way", all other galaxy's that we know of also have suns.
Without the Milky Way Galaxy, in which our solar system exists, we would not be here.
No website exists........... YET
Currently, we do not know of any life that exists within the Andromeda galaxy. Our planet is the only place we know that has life on it.
No, the two are quite unrelated. A galaxy filament is something that actually exists in our world. An astral plane is more hypothetical; if it exists at all, it's definitely not something you would be able to observe with a telescope.
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There has yet to be evidence that a black hole exists in M65.