could two galaxies collide

Question: could two galaxies collide
- Keywords:
  collide,
  galaxy
Asked by Matthew to Andres on 10 Nov 2016.
- Andres Olivares del Campo answered on 10 Nov 2016:
  
  Yes they can! And in fact it happens very often in the universe!
  
  Look at a pretty picture from two spiral galaxies colliding (spiral just means the shape of the galaxies).
  
  https://apod.nasa.gov/apod/ap130825.html

Question: could two galaxies collide