space medium MCQ

Dark matter constitutes approximately what percentage of the total mass-energy content of the universe?

  1. 5%
  2. 27%
  3. 68%
  4. 95%

Answer: 27%

Current cosmological models estimate dark matter makes up ~27% of the universe, dark energy ~68%, and ordinary (baryonic) matter ~5%.

Topic Astronomy - Universe
Exam Relevance SSC CGL, UPSC Prelims
More space Questions Back to all questions