Besides our own galaxy there are about ______ other galaxies scattered all over the universe.
I am sorry to ask my question out of syllabus. My question is:
We know that the universe is expanding rapidly. Every star and planet is going away from one another faster than the speed of light! Then why it is said that our Galaxy (Milky way Galaxy) is coming nearer to our neighbour galaxy (Andromeda Galaxy) and after many years, these galaxies will collide with each other?
Our Milky Way galaxy is a ____ type galaxy.