3 results for “hydrogen”
Space & the Universe
The Life of a Star
hydrogen in the core runs out, the core contracts and heats, and a shell of hydrogen
Article · 3 min read
Space & the Universe
The Big Bang
hydrogen isotope called deuterium. Then expansion cooled things too much for fusion to continue, and it stopped
Article · 4 min read
Space & the Universe
Nebulae
hydrogen atoms; when the electrons recombine, the atoms emit light at specific colours. Hydrogen's signature
Article · 3 min read
