Sentences with phrase «generation exploded star»
They came from first - generation exploded star debris.
http://www.pearltrees.com/ Not exact matches
The first phrases talk about creating the Heavens and the Earth and yet the Earth didn't exist until ~ 9 billion years after the «Heavens», in fact couldn't have existed until a few generations of stars burned and exploded.
The vast distances to the galaxies and thick shrouds of dust blocked a view of the inevitable climax: supernovas exploding in rapid succession as each generation of giant stars dies out.
The implication: Some first - generation or progenitor stars exploded evenly, as expected, but others must have somehow held onto iron during their death throes while allowing lighter metals to spread out into space.
They blazed brilliantly, but within just a few million years they burned out and exploded, spewing heavy elements that helped seed the formation of succeeding generations of stars and planets.
When massive stars explode as supernovae, they disperse the heavier elements they have built into space, where they become the building blocks of the next generation of stars.
originate from fusion reactions in the heart of stars and are spewed out when those stars explode as supernovae, the relatively high metallicity of the galaxy suggests that it had already seen the birth and death of generations of stars by the time the universe was 700 million years old.»
Because its stars contain heavy elements, it must have formed after generations of other stars somehow evolved, lived through their life cycle, and exploded.
The second process relies on the fact that stars also contain smaller amounts of carbon produced in previous generations of stars that exploded as supernovas.
c. Recollect, somehow, enough of that exploded debris — presumably containing heavy elements — to form second generation stars.
Second generation stars do not just burn hydrogen, they also burn heavier elements, like helium and metals (elements heavier than hydrogen and helium), and were formed from supernova explosions (the debris of exploded population II stars).