It is believed that ring galaxies form
A) when two galaxies collide nearly head on at high speed.
B) when two spiral galaxies collide, but not directly head on.
C) from a large cloud of gas and dust with very little angular momentum.
D) from a large cloud of gas and dust with a very high angular momentum.
E) when more than two galaxies collide at the same time.

Question

Quizplus · Accepted Answer

Ring galaxies form when there is a nearly head-on collision between two galaxies at high speed. This collision triggers a massive burst of star formation in a ring-like structure around the center of the galaxy, creating the distinctive ring shape.

It Is Believed That Ring Galaxies Form