Haven't we been told that the closest galaxy will collide with us in 4 billion or so years?
“Haven’t we been told that the closest galaxy will collide with us in 4 billion or so years?”
I don’t remember the best number but yes, galaxies have collided and more will collide. I was posting in context but didn’t explain in detail.
Gravity attracts nearby objects and can override the expansion effect. When we look at objects far away not affected by our gravity every thing is moving away from us.