What makes up the majority of the mass of an individual spiral galaxy?
A) a central supermassive black hole
B) dark matter
C) massive O- and B-type stars
D) cold molecular gas clouds
E) low-mass G-, K-, and M-type stars

Question

Quizplus · Accepted Answer

Dark matter makes up the majority of the mass in spiral galaxies, influencing their rotation curves and gravitational effects, despite being invisible and not directly detectable through electromagnetic radiation.

What Makes Up the Majority of the Mass of an Individual