Answers for September 23, 2026
Category: Most abundant elements in the universe. Mass abundance, highest first.
Source: NASA astrophysics abundance summaries
- 1Hydrogen
- 2Helium
- 3Oxygen
- 4Carbon
- 5Neon
- 6Iron
- 7Nitrogen
- 8Silicon
- 9Magnesium
- 10Sulfur
Category: Most abundant elements in the universe. Mass abundance, highest first.
Source: NASA astrophysics abundance summaries