no
You don't its specuation
Yes. Looking at a deeps space image it is apparent that the universe is filled with Galaxies. It is estimated that there are about 200 billion galaxies in the observable universe.
They study distant galaxies because they want to know whats out in other galaxies and how many planets it has
We do not know. We have not made contact with any aliens.
Do you know how many galaxies are in space?It is never ending just like space.
That is impossible to answer because scientist don't know ALL the galaxies.
the galaxy that contains no blue stars is I DO NOT KNOW and i would like to know the answer too
From what I know it is for PCs only.
We can see them in even average sized telescopes.
i think we do in order to know our greater expanse of where we live.
The answer to this is we do not know but it looks unlikely.The expansion of the universe appears to be speeding up. Local Galaxies might merge into larger galaxies but these galaxies will expand faster and faster away from each other.
Well, we don't know whats all out there because it's hard to get into other galaxies, but we think its the only one with planets. (We don't know for sure so do some more research)