The luminous matter in the universe accounts for what percent of the total mass of the universe?
A) About 5%
B) About 23%
C) About 27%
D) About 73%
E) 100%

Question

Quizplus · Accepted Answer

Luminous matter comprises stars, galaxies, and other celestial bodies that emit or reflect light. However, observations suggest that only about 5% of the total matter in the universe is luminous. The remaining 95% consists of invisible dark matter and dark energy. Therefore, option A) is the correct answer.

The Luminous Matter in the Universe Accounts for What Percent