Which of the following is NOT likely to happen when two spiral galaxies collide?
A) A more massive elliptical galaxy might form out of the merger.
B) The two supermassive black holes at their centers could form a binary black hole system.
C) Individual stars collide to create many supernovae.
D) A burst of star formation will occur in the merged galaxy.
E) The cold gas in the merged galaxy might be blown away by supernovae.

Question

Quizplus · Accepted Answer

While stars may be disrupted and thrown out of orbit during a galaxy collision, it is unlikely that individual stars will collide with each other, as the space between them is still vast. Therefore, supernovae created by such collisions would not be a likely outcome of a galaxy merger.

Which of the Following Is NOT Likely to Happen When