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> Temperatures between 0C and 100C At that time in the early universe, there were no carbon, oxygen, or nitrogen atoms, and no planets with water. Life could o
by ahazred8ta 3y ago
> Temperatures between 0C and 100C
At that time in the early universe, there were no carbon, oxygen, or nitrogen atoms, and no planets with water. Life could only get started several million years after the first supernovas made heavy atoms.
- bediger4000 3y agoAlas, this is disputable: https://arxiv.org/1312.0613 https://arxiv.org/1312.0613
- appplication 3y agoLink seems to be incorrect
- umeshunni 3y agohttps://arxiv.org/abs/1312.0613 https://arxiv.org/abs/1312.0613
- ahazred8ta 3y agoHow so? The 0°-100° era was between 10 and 17 million years after the Big Bang. There were no stars or planets during this period. There were no primordial elements heavier than lithium. Heavier elements were not created until several hundred million years later, after the first supernovas. "At some point around 200 to 500 million years, the earliest generations of stars and galaxies form" -- Before that, there were no oxygen atoms. The guy who wrote that arxiv paper did not know that there were no heavy elements. Please explain what process you think created oxygen atoms before 10My. https://en.wikipedia.org/wiki/Chronology_of_the_universe#The_Dark_Ages_and_large-scale_structure_emergence https://en.wikipedia.org/wiki/Chronology_of_the_universe#The...
- dekhn 3y ago"The guy" is a well known astrophysicist (astrophysicists frequently refer to anything othe than Hydrogen and Helium as "metals"). his article starts out saying early supernovas (very, very early) would be required and the stars would need to be enormous. He cites various estimates of the early universe to support this.