It makes sense to talk about the climate on other planets, not on other galaxies. Not much is known about the climate on any planet outside the Solar System.
Unmanned exploring
Hundreds of billions of stars, some of them with planets.
there are no other milky way galaxys there is only one so your answer is no
the possiblility of traveling to other galaxys
yes
About 30.
At its centre.
Ultraviolet
The path of univers's galaxys
See related questions
the milky wayis the galaxy that our sun is in
Itouch defiantly.