Composition of a nova

The study of nova spectra revealed that they are dominated by hydrogen, indicating its presence as a major component of the Universe. This finding was pivotal in understanding the composition and behavior of novas.
 William Huggins England 1866 Composition of a nova

The study of nova spectra revealed that they are dominated by hydrogen, indicating its presence as a major component of the Universe. This finding was pivotal in understanding the composition and behavior of novas.