Galaxy collisions & galaxy formation. Collisions of galaxies Formation of galaxies Dark Matter. NGC4622. Collisions of galaxies. Galaxy collisions are comparatively common (and spectacular!) Major collision collision of 2 big galaxies Quite rare Minor collision
Credit : Tony and Daphne Hallas
Chris Mihos & Sean Maxwell
When Spirals Collide
This movie zooms in on one patch of a larger simulation where we know that a galaxy cluster is about to form.