The habitable epoch of the early Universe

@article{Loeb2014TheHE,
  title={The habitable epoch of the early Universe},
  author={A. Loeb},
  journal={International Journal of Astrobiology},
  year={2014},
  volume={13},
  pages={337-339}
}
  • A. Loeb
  • Published 2014
  • Physics
  • International Journal of Astrobiology
  • In the redshift range 100≲(1+z)≲137, the cosmic microwave background (CMB) had a temperature of 273–373 K (0–100°C), allowing early rocky planets (if any existed) to have liquid water chemistry on their surface and be habitable, irrespective of their distance from a star. In the standard ΛCDM cosmology, the first star-forming halos within our Hubble volume started collapsing at these redshifts, allowing the chemistry of life to possibly begin when the Universe was merely 10–17 million years old… CONTINUE READING
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