The Earth's elements.
Abstract
As the universe expanded and cooled, atoms and ions of hydrogen, helium and lithium in the nascent galaxies gravitated together to form the first stars. Nuclear reactions in stars and in the shock fronts of supernovae forged the elements from which are made the ordinary matter that surrounds us - and we ourselves.
- Publication:
-
Scientific American
- Pub Date:
- October 1994
- Bibcode:
- 1994SciAm.271d..36K
- Keywords:
-
- Earth: Chemical Composition;
- Earth: Nucleosynthesis